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(window.webpackJsonp=window.webpackJsonp||[]).push([[118],{448:function(t,s,a){"use strict";a.r(s);var n=a(3),r=Object(n.a)({},(function(){var t=this,s=t._self._c;return s("ContentSlotsDistributor",{attrs:{"slot-key":t.$parent.slotKey}},[s("h1",{attrs:{id:"函数式编程"}},[s("a",{staticClass:"header-anchor",attrs:{href:"#函数式编程"}},[t._v("#")]),t._v(" 函数式编程")]),t._v(" "),s("p",[t._v("JavaScript 语言从一诞生，就具有函数式编程的烙印。它将函数作为一种独立的数据类型，与其他数据类型处于完全平等的地位。在 JavaScript 语言中，你可以采用面向对象编程，也可以采用函数式编程。有人甚至说，JavaScript 是有史以来第一种被大规模采用的函数式编程语言。\n"),t._v("\nES6 的种种新增功能，使得函数式编程变得更方便、更强大。本章介绍 ES6 如何进行函数式编程。")]),t._v(" "),s("h2",{attrs:{id:"柯里化"}},[s("a",{staticClass:"header-anchor",attrs:{href:"#柯里化"}},[t._v("#")]),t._v(" 柯里化")]),t._v(" "),s("p",[s("strong",[t._v("柯里化（currying）指的是将一个多参数的函数拆分成一系列函数，每个拆分后的函数都只接受一个参数")]),t._v("（unary）。")]),t._v(" "),s("div",{staticClass:"language-javascript line-numbers-mode"},[s("pre",{pre:!0,attrs:{class:"language-javascript"}},[s("code",[s("span",{pre:!0,attrs:{class:"token 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个参数，则只颠倒前两个参数的位置。")]),t._v(" "),s("p",[t._v("参数倒置的代码非常简单。")]),t._v(" "),s("div",{staticClass:"language-javascript line-numbers-mode"},[s("pre",{pre:!0,attrs:{class:"language-javascript"}},[s("code",[s("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("let")]),t._v(" f "),s("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("{")]),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("}")]),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\nf"),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),s("span",{pre:!0,attrs:{class:"token function-variable function"}},[t._v("flip")]),t._v(" "),s("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v("\n  "),s("span",{pre:!0,attrs:{class:"token parameter"}},[t._v("fn")]),t._v(" "),s("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=>")]),t._v("\n    "),s("span",{pre:!0,attrs:{class:"token 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