JavaScript .replace 仅替换第一个匹配项 [英] JavaScript .replace only replaces first Match

问题描述

var textTitle = "this is a test"
var result = textTitle.replace(' ', '%20');

但是替换函数在"的第一个实例处停止，我得到了

But the replace functions stops at the first instance of the " " and I get the

结果:this%20is a test"

关于我哪里出错的任何想法，我确定这是一个简单的修复.

Any ideas on where Im going wrong im sure its a simple fix.

推荐答案

你需要一个 /g 在那里，像这样:

You need a /g on there, like this:

var textTitle = "this is a test";
var result = textTitle.replace(/ /g, '%20');

console.log(result);

你可以在这里玩，默认的 .replace() 行为是只替换第一个匹配项，/g 修饰符(全局)告诉它替换所有出现的.

You can play with it here, the default .replace() behavior is to replace only the first match, the /g modifier (global) tells it to replace all occurrences.

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