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    24. 

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    25. 

  25.     <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></nav>  <ul class="sidebar-links"><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>初识 TypeScript</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>TypeScript 常用语法</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>ts-axios 项目初始化</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading open"><span>ts-axios 基础功能实现</span> <span class="arrow down"></span></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/blog/pages/1313dae575f6dddf/" aria-current="page" class="active sidebar-link">处理请求 url 参数</a><ul class="sidebar-sub-headers"><li class="sidebar-sub-header level2"><a href="/blog/pages/1313dae575f6dddf/#需求分析" class="sidebar-link">需求分析</a><ul class="sidebar-sub-headers"><li class="sidebar-sub-header level3"><a href="/blog/pages/1313dae575f6dddf/#参数值为数组" class="sidebar-link">参数值为数组</a></li><li class="sidebar-sub-header level3"><a href="/blog/pages/1313dae575f6dddf/#参数值为对象" class="sidebar-link">参数值为对象</a></li><li class="sidebar-sub-header level3"><a href="/blog/pages/1313dae575f6dddf/#参数值为-date-类型" class="sidebar-link">参数值为 Date 类型</a></li><li class="sidebar-sub-header level3"><a href="/blog/pages/1313dae575f6dddf/#特殊字符支持" class="sidebar-link">特殊字符支持</a></li><li class="sidebar-sub-header level3"><a href="/blog/pages/1313dae575f6dddf/#空值忽略" class="sidebar-link">空值忽略</a></li><li class="sidebar-sub-header level3"><a href="/blog/pages/1313dae575f6dddf/#丢弃-url-中的哈希标记" class="sidebar-link">丢弃 url 中的哈希标记</a></li><li class="sidebar-sub-header level3"><a href="/blog/pages/1313dae575f6dddf/#保留-url-中已存在的参数" class="sidebar-link">保留 url 中已存在的参数</a></li></ul></li><li class="sidebar-sub-header level2"><a href="/blog/pages/1313dae575f6dddf/#buildurl-函数实现" class="sidebar-link">buildURL 函数实现</a></li><li class="sidebar-sub-header level2"><a href="/blog/pages/1313dae575f6dddf/#实现-url-参数处理逻辑" class="sidebar-link">实现 url 参数处理逻辑</a></li><li class="sidebar-sub-header level2"><a href="/blog/pages/1313dae575f6dddf/#demo-编写" class="sidebar-link">demo 编写</a></li></ul></li><li><a href="/blog/pages/887cd0918e2543d8/" class="sidebar-link">处理请求 body 数据</a></li><li><a href="/blog/pages/35c0ec1bb0b0faaf/" class="sidebar-link">处理请求 header</a></li><li><a href="/blog/pages/a57debe141e1e4f4/" class="sidebar-link">获取响应数据</a></li><li><a href="/blog/pages/927161662ca32c24/" class="sidebar-link">处理响应 header</a></li><li><a href="/blog/pages/922cb4268499dc3f/" class="sidebar-link">处理响应 data</a></li></ul></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>ts-axios 异常情况处理</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>ts-axios 接口扩展</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>ts-axios 拦截器实现</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>ts-axios 配置化实现</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>ts-axios 取消功能实现</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>ts-axios 更多功能实现</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>ts-axios 单元测试</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>ts-axios 部署与发布</span> <span class="arrow right"></span></p> <!----></section></li></ul> </aside> <div><main class="page"><div class="theme-vdoing-wrapper "><div class="articleInfo-wrap" data-v-06970110><div class="articleInfo" data-v-06970110><ul class="breadcrumbs" data-v-06970110><li data-v-06970110><a href="/blog/" title="首页" class="iconfont icon-home router-link-active" data-v-06970110></a></li> <li data-v-06970110><a href="/blog/note/typescript-axios/#《TypeScript 从零实现 axios》" data-v-06970110>《TypeScript 从零实现 axios》</a></li><li data-v-06970110><a href="/blog/note/typescript-axios/#ts-axios 基础功能实现" data-v-06970110>ts-axios 基础功能实现</a></li></ul> <div class="info" data-v-06970110><div title="作者" class="author iconfont icon-touxiang" data-v-06970110><a href="javascript:;" data-v-06970110>HuangYi</a></div> <div title="创建时间" class="date iconfont icon-riqi" data-v-06970110><a href="javascript:;" data-v-06970110>2020-01-05</a></div> <!----></div></div></div> <!----> <div class="content-wrapper"><div class="right-menu-wrapper"><div class="right-menu-margin"><div class="right-menu-title">目录</div> <div class="right-menu-content"></div></div></div> <h1><img src="data:image/png;base64,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">处理请求 url 参数<!----></h1>  <div class="theme-vdoing-content content__default"><h1 id="处理请求-url-参数"><a href="#处理请求-url-参数" class="header-anchor">#</a> 处理请求 url 参数</h1> <h2 id="需求分析"><a href="#需求分析" class="header-anchor">#</a> 需求分析</h2> <p>还记得我们上节课遗留了一个问题，再来看这个例子：</p> <div class="language-typescript line-numbers-mode"><pre class="language-typescript"><code><span class="token function">axios</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
    26. 

  26.   method<span class="token operator">:</span> <span class="token string">'get'</span><span class="token punctuation">,</span>
    27. 

  27.   url<span class="token operator">:</span> <span class="token string">'/base/get'</span><span class="token punctuation">,</span>
    28. 

  28.   params<span class="token operator">:</span> <span class="token punctuation">{</span>
    29. 

  29.     a<span class="token operator">:</span> <span class="token number">1</span><span class="token punctuation">,</span>
    30. 

  30.     b<span class="token operator">:</span> <span class="token number">2</span>
    31. 

  31.   <span class="token punctuation">}</span>
    32. 

  32. <span class="token punctuation">}</span><span class="token punctuation">)</span>
    33. 

  33. </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br></div></div><p>我们希望最终请求的 <code>url</code> 是 <code>/base/get?a=1&amp;b=2</code>，这样服务端就可以通过请求的 url 解析到我们传来的参数数据了。实际上就是把 <code>params</code> 对象的 key 和 value 拼接到 <code>url</code> 上。</p> <p>再来看几个更复杂的例子。</p> <h3 id="参数值为数组"><a href="#参数值为数组" class="header-anchor">#</a> 参数值为数组</h3> <div class="language-typescript line-numbers-mode"><pre class="language-typescript"><code><span class="token function">axios</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
    34. 

  34.   method<span class="token operator">:</span> <span class="token string">'get'</span><span class="token punctuation">,</span>
    35. 

  35.   url<span class="token operator">:</span> <span class="token string">'/base/get'</span><span class="token punctuation">,</span>
    36. 

  36.   params<span class="token operator">:</span> <span class="token punctuation">{</span>
    37. 

  37.     foo<span class="token operator">:</span> <span class="token punctuation">[</span><span class="token string">'bar'</span><span class="token punctuation">,</span> <span class="token string">'baz'</span><span class="token punctuation">]</span>
    38. 

  38.   <span class="token punctuation">}</span>
    39. 

  39. <span class="token punctuation">}</span><span class="token punctuation">)</span>
    40. 

  40. </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br></div></div><p>最终请求的 <code>url</code> 是 <code>/base/get?foo[]=bar&amp;foo[]=baz'</code>。</p> <h3 id="参数值为对象"><a href="#参数值为对象" class="header-anchor">#</a> 参数值为对象</h3> <div class="language-typescript line-numbers-mode"><pre class="language-typescript"><code><span class="token function">axios</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
    41. 

  41.   method<span class="token operator">:</span> <span class="token string">'get'</span><span class="token punctuation">,</span>
    42. 

  42.   url<span class="token operator">:</span> <span class="token string">'/base/get'</span><span class="token punctuation">,</span>
    43. 

  43.   params<span class="token operator">:</span> <span class="token punctuation">{</span>
    44. 

  44.     foo<span class="token operator">:</span> <span class="token punctuation">{</span>
    45. 

  45.       bar<span class="token operator">:</span> <span class="token string">'baz'</span>
    46. 

  46.     <span class="token punctuation">}</span>
    47. 

  47.   <span class="token punctuation">}</span>
    48. 

  48. <span class="token punctuation">}</span><span class="token punctuation">)</span>
    49. 

  49. </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br></div></div><p>最终请求的 <code>url</code> 是 <code>/base/get?foo=%7B%22bar%22:%22baz%22%7D</code>，<code>foo</code> 后面拼接的是 <code>{&quot;bar&quot;:&quot;baz&quot;}</code> encode 后的结果。</p> <h3 id="参数值为-date-类型"><a href="#参数值为-date-类型" class="header-anchor">#</a> 参数值为 Date 类型</h3> <div class="language-typescript line-numbers-mode"><pre class="language-typescript"><code><span class="token keyword">const</span> date <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">Date</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
    50. 

  50. 

  51. <span class="token function">axios</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
    52. 

  52.   method<span class="token operator">:</span> <span class="token string">'get'</span><span class="token punctuation">,</span>
    53. 

  53.   url<span class="token operator">:</span> <span class="token string">'/base/get'</span><span class="token punctuation">,</span>
    54. 

  54.   params<span class="token operator">:</span> <span class="token punctuation">{</span>
    55. 

  55.     date
    56. 

  56.   <span class="token punctuation">}</span>
    57. 

  57. <span class="token punctuation">}</span><span class="token punctuation">)</span>
    58. 

  58. </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br></div></div><p>最终请求的 <code>url</code> 是 <code>/base/get?date=2019-04-01T05:55:39.030Z</code>，<code>date</code> 后面拼接的是 <code>date.toISOString()</code> 的结果。</p> <h3 id="特殊字符支持"><a href="#特殊字符支持" class="header-anchor">#</a> 特殊字符支持</h3> <p>对于字符 <code>@</code>、<code>:</code>、<code>$</code>、<code>,</code>、<code></code>、<code>[</code>、<code>]</code>，我们是允许出现在 <code>url</code> 中的，不希望被 encode。</p> <div class="language-typescript line-numbers-mode"><pre class="language-typescript"><code><span class="token function">axios</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
    59. 

  59.   method<span class="token operator">:</span> <span class="token string">'get'</span><span class="token punctuation">,</span>
    60. 

  60.   url<span class="token operator">:</span> <span class="token string">'/base/get'</span><span class="token punctuation">,</span>
    61. 

  61.   params<span class="token operator">:</span> <span class="token punctuation">{</span>
    62. 

  62.     foo<span class="token operator">:</span> <span class="token string">'@:$, '</span>
    63. 

  63.   <span class="token punctuation">}</span>
    64. 

  64. <span class="token punctuation">}</span><span class="token punctuation">)</span>
    65. 

  65. </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br></div></div><p>最终请求的 <code>url</code> 是 <code>/base/get?foo=@:$+</code>，注意，我们会把空格 <code></code> 转换成 <code>+</code>。</p> <h3 id="空值忽略"><a href="#空值忽略" class="header-anchor">#</a> 空值忽略</h3> <p>对于值为 <code>null</code> 或者 <code>undefined</code> 的属性，我们是不会添加到 url 参数中的。</p> <div class="language-typescript line-numbers-mode"><pre class="language-typescript"><code><span class="token function">axios</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
    66. 

  66.   method<span class="token operator">:</span> <span class="token string">'get'</span><span class="token punctuation">,</span>
    67. 

  67.   url<span class="token operator">:</span> <span class="token string">'/base/get'</span><span class="token punctuation">,</span>
    68. 

  68.   params<span class="token operator">:</span> <span class="token punctuation">{</span>
    69. 

  69.     foo<span class="token operator">:</span> <span class="token string">'bar'</span><span class="token punctuation">,</span>
    70. 

  70.     baz<span class="token operator">:</span> <span class="token keyword">null</span>
    71. 

  71.   <span class="token punctuation">}</span>
    72. 

  72. <span class="token punctuation">}</span><span class="token punctuation">)</span>
    73. 

  73. </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br></div></div><p>最终请求的 <code>url</code> 是 <code>/base/get?foo=bar</code>。</p> <h3 id="丢弃-url-中的哈希标记"><a href="#丢弃-url-中的哈希标记" class="header-anchor">#</a> 丢弃 url 中的哈希标记</h3> <div class="language-typescript line-numbers-mode"><pre class="language-typescript"><code><span class="token function">axios</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
    74. 

  74.   method<span class="token operator">:</span> <span class="token string">'get'</span><span class="token punctuation">,</span>
    75. 

  75.   url<span class="token operator">:</span> <span class="token string">'/base/get#hash'</span><span class="token punctuation">,</span>
    76. 

  76.   params<span class="token operator">:</span> <span class="token punctuation">{</span>
    77. 

  77.     foo<span class="token operator">:</span> <span class="token string">'bar'</span>
    78. 

  78.   <span class="token punctuation">}</span>
    79. 

  79. <span class="token punctuation">}</span><span class="token punctuation">)</span>
    80. 

  80. </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br></div></div><p>最终请求的 <code>url</code> 是 <code>/base/get?foo=bar</code></p> <h3 id="保留-url-中已存在的参数"><a href="#保留-url-中已存在的参数" class="header-anchor">#</a> 保留 url 中已存在的参数</h3> <div class="language-typescript line-numbers-mode"><pre class="language-typescript"><code><span class="token function">axios</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
    81. 

  81.   method<span class="token operator">:</span> <span class="token string">'get'</span><span class="token punctuation">,</span>
    82. 

  82.   url<span class="token operator">:</span> <span class="token string">'/base/get?foo=bar'</span><span class="token punctuation">,</span>
    83. 

  83.   params<span class="token operator">:</span> <span class="token punctuation">{</span>
    84. 

  84.     bar<span class="token operator">:</span> <span class="token string">'baz'</span>
    85. 

  85.   <span class="token punctuation">}</span>
    86. 

  86. <span class="token punctuation">}</span><span class="token punctuation">)</span>
    87. 

  87. </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br></div></div><p>最终请求的 <code>url</code> 是 <code>/base/get?foo=bar&amp;bar=baz</code></p> <h2 id="buildurl-函数实现"><a href="#buildurl-函数实现" class="header-anchor">#</a> buildURL 函数实现</h2> <p>根据我们之前的需求分析，我们要实现一个工具函数，把 <code>params</code> 拼接到 <code>url</code> 上。我们希望把项目中的一些工具函数、辅助方法独立管理，于是我们创建一个 <code>helpers</code> 目录，在这个目录下创建 <code>url.ts</code> 文件，未来会把处理 <code>url</code> 相关的工具函数都放在该文件中。</p> <p><code>helpers/url.ts</code>：</p> <div class="language-typescript line-numbers-mode"><pre class="language-typescript"><code><span class="token keyword">import</span> <span class="token punctuation">{</span> isDate<span class="token punctuation">,</span> isObject <span class="token punctuation">}</span> <span class="token keyword">from</span> <span class="token string">'./util'</span>
    88. 

  88. 

  89. <span class="token keyword">function</span> <span class="token function">encode</span> <span class="token punctuation">(</span>val<span class="token operator">:</span> <span class="token builtin">string</span><span class="token punctuation">)</span><span class="token operator">:</span> <span class="token builtin">string</span> <span class="token punctuation">{</span>
    90. 

  90.   <span class="token keyword">return</span> <span class="token function">encodeURIComponent</span><span class="token punctuation">(</span>val<span class="token punctuation">)</span>
    91. 

  91.     <span class="token punctuation">.</span><span class="token function">replace</span><span class="token punctuation">(</span><span class="token regex"><span class="token regex-delimiter">/</span><span class="token regex-source language-regex">%40</span><span class="token regex-delimiter">/</span><span class="token regex-flags">g</span></span><span class="token punctuation">,</span> <span class="token string">'@'</span><span class="token punctuation">)</span>
    92. 

  92.     <span class="token punctuation">.</span><span class="token function">replace</span><span class="token punctuation">(</span><span class="token regex"><span class="token regex-delimiter">/</span><span class="token regex-source language-regex">%3A</span><span class="token regex-delimiter">/</span><span class="token regex-flags">gi</span></span><span class="token punctuation">,</span> <span class="token string">':'</span><span class="token punctuation">)</span>
    93. 

  93.     <span class="token punctuation">.</span><span class="token function">replace</span><span class="token punctuation">(</span><span class="token regex"><span class="token regex-delimiter">/</span><span class="token regex-source language-regex">%24</span><span class="token regex-delimiter">/</span><span class="token regex-flags">g</span></span><span class="token punctuation">,</span> <span class="token string">'$'</span><span class="token punctuation">)</span>
    94. 

  94.     <span class="token punctuation">.</span><span class="token function">replace</span><span class="token punctuation">(</span><span class="token regex"><span class="token regex-delimiter">/</span><span class="token regex-source language-regex">%2C</span><span class="token regex-delimiter">/</span><span class="token regex-flags">gi</span></span><span class="token punctuation">,</span> <span class="token string">','</span><span class="token punctuation">)</span>
    95. 

  95.     <span class="token punctuation">.</span><span class="token function">replace</span><span class="token punctuation">(</span><span class="token regex"><span class="token regex-delimiter">/</span><span class="token regex-source language-regex">%20</span><span class="token regex-delimiter">/</span><span class="token regex-flags">g</span></span><span class="token punctuation">,</span> <span class="token string">'+'</span><span class="token punctuation">)</span>
    96. 

  96.     <span class="token punctuation">.</span><span class="token function">replace</span><span class="token punctuation">(</span><span class="token regex"><span class="token regex-delimiter">/</span><span class="token regex-source language-regex">%5B</span><span class="token regex-delimiter">/</span><span class="token regex-flags">gi</span></span><span class="token punctuation">,</span> <span class="token string">'['</span><span class="token punctuation">)</span>
    97. 

  97.     <span class="token punctuation">.</span><span class="token function">replace</span><span class="token punctuation">(</span><span class="token regex"><span class="token regex-delimiter">/</span><span class="token regex-source language-regex">%5D</span><span class="token regex-delimiter">/</span><span class="token regex-flags">gi</span></span><span class="token punctuation">,</span> <span class="token string">']'</span><span class="token punctuation">)</span>
    98. 

  98. <span class="token punctuation">}</span>
    99. 

  99. 

  100. <span class="token keyword">export</span> <span class="token keyword">function</span> <span class="token function">bulidURL</span> <span class="token punctuation">(</span>url<span class="token operator">:</span> <span class="token builtin">string</span><span class="token punctuation">,</span> params<span class="token operator">?</span><span class="token operator">:</span> <span class="token builtin">any</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    101. 

  101.   <span class="token keyword">if</span> <span class="token punctuation">(</span><span class="token operator">!</span>params<span class="token punctuation">)</span> <span class="token punctuation">{</span>
    102. 

  102.     <span class="token keyword">return</span> url
    103. 

  103.   <span class="token punctuation">}</span>
    104. 

  104. 

  105.   <span class="token keyword">const</span> parts<span class="token operator">:</span> <span class="token builtin">string</span><span class="token punctuation">[</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token punctuation">[</span><span class="token punctuation">]</span>
    106. 

  106. 

  107.   Object<span class="token punctuation">.</span><span class="token function">keys</span><span class="token punctuation">(</span>params<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">forEach</span><span class="token punctuation">(</span><span class="token punctuation">(</span>key<span class="token punctuation">)</span> <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    108. 

  108.     <span class="token keyword">let</span> val <span class="token operator">=</span> params<span class="token punctuation">[</span>key<span class="token punctuation">]</span>
    109. 

  109.     <span class="token keyword">if</span> <span class="token punctuation">(</span>val <span class="token operator">===</span> <span class="token keyword">null</span> <span class="token operator">||</span> <span class="token keyword">typeof</span> val <span class="token operator">===</span> <span class="token string">'undefined'</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    110. 

  110.       <span class="token keyword">return</span>
    111. 

  111.     <span class="token punctuation">}</span>
    112. 

  112.     <span class="token keyword">let</span> values<span class="token operator">:</span> <span class="token builtin">string</span><span class="token punctuation">[</span><span class="token punctuation">]</span>
    113. 

  113.     <span class="token keyword">if</span> <span class="token punctuation">(</span><span class="token builtin">Array</span><span class="token punctuation">.</span><span class="token function">isArray</span><span class="token punctuation">(</span>val<span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    114. 

  114.       values <span class="token operator">=</span> val
    115. 

  115.       key <span class="token operator">+=</span> <span class="token string">'[]'</span>
    116. 

  116.     <span class="token punctuation">}</span> <span class="token keyword">else</span> <span class="token punctuation">{</span>
    117. 

  117.       values <span class="token operator">=</span> <span class="token punctuation">[</span>val<span class="token punctuation">]</span>
    118. 

  118.     <span class="token punctuation">}</span>
    119. 

  119.     values<span class="token punctuation">.</span><span class="token function">forEach</span><span class="token punctuation">(</span><span class="token punctuation">(</span>val<span class="token punctuation">)</span> <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    120. 

  120.       <span class="token keyword">if</span> <span class="token punctuation">(</span><span class="token function">isDate</span><span class="token punctuation">(</span>val<span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    121. 

  121.         val <span class="token operator">=</span> val<span class="token punctuation">.</span><span class="token function">toISOString</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
    122. 

  122.       <span class="token punctuation">}</span> <span class="token keyword">else</span> <span class="token keyword">if</span> <span class="token punctuation">(</span><span class="token function">isObject</span><span class="token punctuation">(</span>val<span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    123. 

  123.         val <span class="token operator">=</span> <span class="token constant">JSON</span><span class="token punctuation">.</span><span class="token function">stringify</span><span class="token punctuation">(</span>val<span class="token punctuation">)</span>
    124. 

  124.       <span class="token punctuation">}</span>
    125. 

  125.       parts<span class="token punctuation">.</span><span class="token function">push</span><span class="token punctuation">(</span><span class="token template-string"><span class="token template-punctuation string">`</span><span class="token interpolation"><span class="token interpolation-punctuation punctuation">${</span><span class="token function">encode</span><span class="token punctuation">(</span>key<span class="token punctuation">)</span><span class="token interpolation-punctuation punctuation">}</span></span><span class="token string">=</span><span class="token interpolation"><span class="token interpolation-punctuation punctuation">${</span><span class="token function">encode</span><span class="token punctuation">(</span>val<span class="token punctuation">)</span><span class="token interpolation-punctuation punctuation">}</span></span><span class="token template-punctuation string">`</span></span><span class="token punctuation">)</span>
    126. 

  126.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    127. 

  127.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    128. 

  128. 

  129.   <span class="token keyword">let</span> serializedParams <span class="token operator">=</span> parts<span class="token punctuation">.</span><span class="token function">join</span><span class="token punctuation">(</span><span class="token string">'&amp;'</span><span class="token punctuation">)</span>
    130. 

  130. 

  131.   <span class="token keyword">if</span> <span class="token punctuation">(</span>serializedParams<span class="token punctuation">)</span> <span class="token punctuation">{</span>
    132. 

  132.     <span class="token keyword">const</span> markIndex <span class="token operator">=</span> url<span class="token punctuation">.</span><span class="token function">indexOf</span><span class="token punctuation">(</span><span class="token string">'#'</span><span class="token punctuation">)</span>
    133. 

  133.     <span class="token keyword">if</span> <span class="token punctuation">(</span>markIndex <span class="token operator">!==</span> <span class="token operator">-</span><span class="token number">1</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    134. 

  134.       url <span class="token operator">=</span> url<span class="token punctuation">.</span><span class="token function">slice</span><span class="token punctuation">(</span><span class="token number">0</span><span class="token punctuation">,</span> markIndex<span class="token punctuation">)</span>
    135. 

  135.     <span class="token punctuation">}</span>
    136. 

  136. 

  137.     url <span class="token operator">+=</span> <span class="token punctuation">(</span>url<span class="token punctuation">.</span><span class="token function">indexOf</span><span class="token punctuation">(</span><span class="token string">'?'</span><span class="token punctuation">)</span> <span class="token operator">===</span> <span class="token operator">-</span><span class="token number">1</span> <span class="token operator">?</span> <span class="token string">'?'</span> <span class="token operator">:</span> <span class="token string">'&amp;'</span><span class="token punctuation">)</span> <span class="token operator">+</span> serializedParams
    138. 

  138.   <span class="token punctuation">}</span>
    139. 

  139. 

  140.   <span class="token keyword">return</span> url
    141. 

  141. <span class="token punctuation">}</span>
    142. 

  142. </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br><span class="line-number">19</span><br><span class="line-number">20</span><br><span class="line-number">21</span><br><span class="line-number">22</span><br><span class="line-number">23</span><br><span class="line-number">24</span><br><span class="line-number">25</span><br><span class="line-number">26</span><br><span class="line-number">27</span><br><span class="line-number">28</span><br><span class="line-number">29</span><br><span class="line-number">30</span><br><span class="line-number">31</span><br><span class="line-number">32</span><br><span class="line-number">33</span><br><span class="line-number">34</span><br><span class="line-number">35</span><br><span class="line-number">36</span><br><span class="line-number">37</span><br><span class="line-number">38</span><br><span class="line-number">39</span><br><span class="line-number">40</span><br><span class="line-number">41</span><br><span class="line-number">42</span><br><span class="line-number">43</span><br><span class="line-number">44</span><br><span class="line-number">45</span><br><span class="line-number">46</span><br><span class="line-number">47</span><br><span class="line-number">48</span><br><span class="line-number">49</span><br><span class="line-number">50</span><br><span class="line-number">51</span><br><span class="line-number">52</span><br><span class="line-number">53</span><br><span class="line-number">54</span><br><span class="line-number">55</span><br></div></div><p><code>helpers/util.ts</code>：</p> <div class="language-typescript line-numbers-mode"><pre class="language-typescript"><code><span class="token keyword">const</span> toString <span class="token operator">=</span> Object<span class="token punctuation">.</span>prototype<span class="token punctuation">.</span>toString
    143. 

  143. 

  144. <span class="token keyword">export</span> <span class="token keyword">function</span> <span class="token function">isDate</span> <span class="token punctuation">(</span>val<span class="token operator">:</span> <span class="token builtin">any</span><span class="token punctuation">)</span><span class="token operator">:</span> val <span class="token keyword">is</span> Date <span class="token punctuation">{</span>
    145. 

  145.   <span class="token keyword">return</span> <span class="token function">toString</span><span class="token punctuation">.</span><span class="token function">call</span><span class="token punctuation">(</span>val<span class="token punctuation">)</span> <span class="token operator">===</span> <span class="token string">'[object Date]'</span>
    146. 

  146. <span class="token punctuation">}</span>
    147. 

  147. 

  148. <span class="token keyword">export</span> <span class="token keyword">function</span> <span class="token function">isObject</span> <span class="token punctuation">(</span>val<span class="token operator">:</span> <span class="token builtin">any</span><span class="token punctuation">)</span><span class="token operator">:</span> val <span class="token keyword">is</span> Object <span class="token punctuation">{</span>
    149. 

  149.   <span class="token keyword">return</span> val <span class="token operator">!==</span> <span class="token keyword">null</span> <span class="token operator">&amp;&amp;</span> <span class="token keyword">typeof</span> val <span class="token operator">===</span> <span class="token string">'object'</span>
    150. 

  150. <span class="token punctuation">}</span>
    151. 

  151. 

  152. </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br></div></div><h2 id="实现-url-参数处理逻辑"><a href="#实现-url-参数处理逻辑" class="header-anchor">#</a> 实现 url 参数处理逻辑</h2> <p>我们已经实现了 <code>buildURL</code> 函数，接下来我们来利用它实现 <code>url</code> 参数的处理逻辑。</p> <p>在 <code>index.ts</code> 文件中添加如下代码：</p> <div class="language-typescript line-numbers-mode"><pre class="language-typescript"><code><span class="token keyword">function</span> <span class="token function">axios</span> <span class="token punctuation">(</span>config<span class="token operator">:</span> AxiosRequestConfig<span class="token punctuation">)</span><span class="token operator">:</span> <span class="token keyword">void</span> <span class="token punctuation">{</span>
    153. 

  153.   <span class="token function">processConfig</span><span class="token punctuation">(</span>config<span class="token punctuation">)</span>
    154. 

  154.   <span class="token function">xhr</span><span class="token punctuation">(</span>config<span class="token punctuation">)</span>
    155. 

  155. <span class="token punctuation">}</span>
    156. 

  156. 

  157. <span class="token keyword">function</span> <span class="token function">processConfig</span> <span class="token punctuation">(</span>config<span class="token operator">:</span> AxiosRequestConfig<span class="token punctuation">)</span><span class="token operator">:</span> <span class="token keyword">void</span> <span class="token punctuation">{</span>
    158. 

  158.   config<span class="token punctuation">.</span>url <span class="token operator">=</span> <span class="token function">transformUrl</span><span class="token punctuation">(</span>config<span class="token punctuation">)</span>
    159. 

  159. <span class="token punctuation">}</span>
    160. 

  160. 

  161. <span class="token keyword">function</span> <span class="token function">transformUrl</span> <span class="token punctuation">(</span>config<span class="token operator">:</span> AxiosRequestConfig<span class="token punctuation">)</span><span class="token operator">:</span> <span class="token builtin">string</span> <span class="token punctuation">{</span>
    162. 

  162.   <span class="token keyword">const</span> <span class="token punctuation">{</span> url<span class="token punctuation">,</span> params <span class="token punctuation">}</span> <span class="token operator">=</span> config
    163. 

  163.   <span class="token keyword">return</span> <span class="token function">bulidURL</span><span class="token punctuation">(</span>url<span class="token punctuation">,</span> params<span class="token punctuation">)</span>
    164. 

  164. <span class="token punctuation">}</span>
    165. 

  165. </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br></div></div><p>在执行 <code>xhr</code> 函数前，我们先执行 <code>processConfig</code> 方法，对 <code>config</code> 中的数据做处理，除了对 <code>url</code> 和 <code>params</code> 处理之外，未来还会处理其它属性。</p> <p>在 <code>processConfig</code> 函数内部，我们通过执行 <code>transformUrl</code> 函数修改了 <code>config.url</code>，该函数内部调用了 <code>buildURL</code>。</p> <p>那么至此，我们对 <code>url</code> 参数处理逻辑就实现完了，接下来我们就开始编写 demo 了。</p> <h2 id="demo-编写"><a href="#demo-编写" class="header-anchor">#</a> demo 编写</h2> <p>在 <code>examples</code> 目录下创建 <code>base</code> 目录，在 <code>base</code> 目录下创建 <code>index.html</code>:</p> <div class="language-html line-numbers-mode"><pre class="language-html"><code><span class="token doctype"><span class="token punctuation">&lt;!</span><span class="token doctype-tag">DOCTYPE</span> <span class="token name">html</span><span class="token punctuation">&gt;</span></span>
    166. 

  166. <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>html</span> <span class="token attr-name">lang</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>en<span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span>
    167. 

  167.   <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>head</span><span class="token punctuation">&gt;</span></span>
    168. 

  168.     <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>meta</span> <span class="token attr-name">charset</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>utf-8<span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span>
    169. 

  169.     <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>title</span><span class="token punctuation">&gt;</span></span>Base example<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>title</span><span class="token punctuation">&gt;</span></span>
    170. 

  170.   <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>head</span><span class="token punctuation">&gt;</span></span>
    171. 

  171.   <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>body</span><span class="token punctuation">&gt;</span></span>
    172. 

  172.     <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>script</span> <span class="token attr-name">src</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>/__build__/base.js<span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span><span class="token script"></span><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>script</span><span class="token punctuation">&gt;</span></span>
    173. 

  173.   <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>body</span><span class="token punctuation">&gt;</span></span>
    174. 

  174. <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>html</span><span class="token punctuation">&gt;</span></span>
    175. 

  175. </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br></div></div><p>接着创建 <code>app.ts</code> 作为入口文件：</p> <div class="language-typescript line-numbers-mode"><pre class="language-typescript"><code><span class="token keyword">import</span> axios <span class="token keyword">from</span> <span class="token string">'../../src/index'</span>
    176. 

  176. 

  177. <span class="token function">axios</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
    178. 

  178.   method<span class="token operator">:</span> <span class="token string">'get'</span><span class="token punctuation">,</span>
    179. 

  179.   url<span class="token operator">:</span> <span class="token string">'/base/get'</span><span class="token punctuation">,</span>
    180. 

  180.   params<span class="token operator">:</span> <span class="token punctuation">{</span>
    181. 

  181.     foo<span class="token operator">:</span> <span class="token punctuation">[</span><span class="token string">'bar'</span><span class="token punctuation">,</span> <span class="token string">'baz'</span><span class="token punctuation">]</span>
    182. 

  182.   <span class="token punctuation">}</span>
    183. 

  183. <span class="token punctuation">}</span><span class="token punctuation">)</span>
    184. 

  184. 

  185. <span class="token function">axios</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
    186. 

  186.   method<span class="token operator">:</span> <span class="token string">'get'</span><span class="token punctuation">,</span>
    187. 

  187.   url<span class="token operator">:</span> <span class="token string">'/base/get'</span><span class="token punctuation">,</span>
    188. 

  188.   params<span class="token operator">:</span> <span class="token punctuation">{</span>
    189. 

  189.     foo<span class="token operator">:</span> <span class="token punctuation">{</span>
    190. 

  190.       bar<span class="token operator">:</span> <span class="token string">'baz'</span>
    191. 

  191.     <span class="token punctuation">}</span>
    192. 

  192.   <span class="token punctuation">}</span>
    193. 

  193. <span class="token punctuation">}</span><span class="token punctuation">)</span>
    194. 

  194. 

  195. <span class="token keyword">const</span> date <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">Date</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
    196. 

  196. 

  197. <span class="token function">axios</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
    198. 

  198.   method<span class="token operator">:</span> <span class="token string">'get'</span><span class="token punctuation">,</span>
    199. 

  199.   url<span class="token operator">:</span> <span class="token string">'/base/get'</span><span class="token punctuation">,</span>
    200. 

  200.   params<span class="token operator">:</span> <span class="token punctuation">{</span>
    201. 

  201.     date
    202. 

  202.   <span class="token punctuation">}</span>
    203. 

  203. <span class="token punctuation">}</span><span class="token punctuation">)</span>
    204. 

  204. 

  205. <span class="token function">axios</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
    206. 

  206.   method<span class="token operator">:</span> <span class="token string">'get'</span><span class="token punctuation">,</span>
    207. 

  207.   url<span class="token operator">:</span> <span class="token string">'/base/get'</span><span class="token punctuation">,</span>
    208. 

  208.   params<span class="token operator">:</span> <span class="token punctuation">{</span>
    209. 

  209.     foo<span class="token operator">:</span> <span class="token string">'@:$, '</span>
    210. 

  210.   <span class="token punctuation">}</span>
    211. 

  211. <span class="token punctuation">}</span><span class="token punctuation">)</span>
    212. 

  212. 

  213. <span class="token function">axios</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
    214. 

  214.   method<span class="token operator">:</span> <span class="token string">'get'</span><span class="token punctuation">,</span>
    215. 

  215.   url<span class="token operator">:</span> <span class="token string">'/base/get'</span><span class="token punctuation">,</span>
    216. 

  216.   params<span class="token operator">:</span> <span class="token punctuation">{</span>
    217. 

  217.     foo<span class="token operator">:</span> <span class="token string">'bar'</span><span class="token punctuation">,</span>
    218. 

  218.     baz<span class="token operator">:</span> <span class="token keyword">null</span>
    219. 

  219.   <span class="token punctuation">}</span>
    220. 

  220. <span class="token punctuation">}</span><span class="token punctuation">)</span>
    221. 

  221. 

  222. <span class="token function">axios</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
    223. 

  223.   method<span class="token operator">:</span> <span class="token string">'get'</span><span class="token punctuation">,</span>
    224. 

  224.   url<span class="token operator">:</span> <span class="token string">'/base/get#hash'</span><span class="token punctuation">,</span>
    225. 

  225.   params<span class="token operator">:</span> <span class="token punctuation">{</span>
    226. 

  226.     foo<span class="token operator">:</span> <span class="token string">'bar'</span>
    227. 

  227.   <span class="token punctuation">}</span>
    228. 

  228. <span class="token punctuation">}</span><span class="token punctuation">)</span>
    229. 

  229. 

  230. <span class="token function">axios</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
    231. 

  231.   method<span class="token operator">:</span> <span class="token string">'get'</span><span class="token punctuation">,</span>
    232. 

  232.   url<span class="token operator">:</span> <span class="token string">'/base/get?foo=bar'</span><span class="token punctuation">,</span>
    233. 

  233.   params<span class="token operator">:</span> <span class="token punctuation">{</span>
    234. 

  234.     bar<span class="token operator">:</span> <span class="token string">'baz'</span>
    235. 

  235.   <span class="token punctuation">}</span>
    236. 

  236. <span class="token punctuation">}</span><span class="token punctuation">)</span>
    237. 

  237. </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br><span class="line-number">19</span><br><span class="line-number">20</span><br><span class="line-number">21</span><br><span class="line-number">22</span><br><span class="line-number">23</span><br><span class="line-number">24</span><br><span class="line-number">25</span><br><span class="line-number">26</span><br><span class="line-number">27</span><br><span class="line-number">28</span><br><span class="line-number">29</span><br><span class="line-number">30</span><br><span class="line-number">31</span><br><span class="line-number">32</span><br><span class="line-number">33</span><br><span class="line-number">34</span><br><span class="line-number">35</span><br><span class="line-number">36</span><br><span class="line-number">37</span><br><span class="line-number">38</span><br><span class="line-number">39</span><br><span class="line-number">40</span><br><span class="line-number">41</span><br><span class="line-number">42</span><br><span class="line-number">43</span><br><span class="line-number">44</span><br><span class="line-number">45</span><br><span class="line-number">46</span><br><span class="line-number">47</span><br><span class="line-number">48</span><br><span class="line-number">49</span><br><span class="line-number">50</span><br><span class="line-number">51</span><br><span class="line-number">52</span><br><span class="line-number">53</span><br><span class="line-number">54</span><br><span class="line-number">55</span><br><span class="line-number">56</span><br><span class="line-number">57</span><br><span class="line-number">58</span><br><span class="line-number">59</span><br><span class="line-number">60</span><br><span class="line-number">61</span><br><span class="line-number">62</span><br></div></div><p>接着在 <code>server.js</code> 添加新的接口路由：</p> <div class="language-typescript line-numbers-mode"><pre class="language-typescript"><code>router<span class="token punctuation">.</span><span class="token function">get</span><span class="token punctuation">(</span><span class="token string">'/base/get'</span><span class="token punctuation">,</span> <span class="token keyword">function</span><span class="token punctuation">(</span>req<span class="token punctuation">,</span> res<span class="token punctuation">)</span> <span class="token punctuation">{</span>
    238. 

  238.   res<span class="token punctuation">.</span><span class="token function">json</span><span class="token punctuation">(</span>req<span class="token punctuation">.</span>query<span class="token punctuation">)</span>
    239. 

  239. <span class="token punctuation">}</span><span class="token punctuation">)</span>
    240. 

  240. </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br></div></div><p>然后在命令行运行 <code>npm run dev</code>，接着打开 chrome 浏览器，访问 <code>http://localhost:8080/</code> 即可访问我们的 demo 了，我们点到 <code>Base</code> 目录下，通过开发者工具的 network 部分我们可以看到成功发送的多条请求，并可以观察它们最终请求的 url，已经如期添加了请求参数。</p> <p>那么至此我们的请求 <code>url</code> 参数处理编写完了，下一小节我们会对 <code>request body</code> 数据做处理。</p></div></div>  <div class="page-edit"><div class="edit-link"><a href="https://github.com/heBody/blog/edit/master/docs/《TypeScript 从零实现 axios》/04.ts-axios 基础功能实现/01.处理请求 url 参数.md" target="_blank" rel="noopener noreferrer">编辑</a> <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></div> <div class="tags"><a href="/blog/tags/?tag=TypeScript" title="标签">#TypeScript</a></div> <div class="last-updated"><span class="prefix">上次更新:</span> <span class="time">2022/12/14, 19:36:42</span></div></div> <div class="page-nav-wapper"><div class="page-nav-centre-wrap"><a href="/blog/pages/acfe1e0b401fa984/" class="page-nav-centre page-nav-centre-prev"><div class="tooltip">编写基础请求代码</div></a> <a href="/blog/pages/887cd0918e2543d8/" class="page-nav-centre page-nav-centre-next"><div class="tooltip">处理请求 body 数据</div></a></div> <div class="page-nav"><p class="inner"><span class="prev">
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