JavaScript参数按值传递的相关内容

文章 2022-04-23 来自：开发者社区

JavaScript深入之参数按值传递

JavaScript深入系列第九篇，除了按值传递、引用传递，还有第三种传递方式 —— 按共享传递定义在《JavaScript高级程序设计》第三版 4.1.3，讲到传递参数：ECMAScript中所有函数的参数都是按值传递的。什么是按值传递呢？也就是说，把函数外部的值复制给函数内部的参数，就和把值从一个变量复制到另一个变量一样。按值传递举个简单的例子：var value = 1; function....

文章 2017-12-14 来自：开发者社区

JavaScript深入之参数按值传递

定义在《JavaScript高级程序设计》第三版 4.1.3，讲到传递参数： ECMAScript中所有函数的参数都是按值传递的。什么是按值传递呢？也就是说，把函数外部的值复制给函数内部的参数，就和把值从一个变量复制到另一个变量一样。按值传递举个简单的例子： var value = 1; function foo(v) { v = 2; console.log(...

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更新时间 2022-08-10 15:18:23

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