How to completely replace one substring with another substring by js

This article shows you how js can completely replace one substring into another, which is concise and easy to understand, and can definitely brighten your eyes. I hope you can get something through the detailed introduction of this article.

If you need to replace all strings, you can use String.prototype.replace (re, replacer), where regular expressions need to turn on global flag

Const s = 'foo foo foo'

S.replce (/ foo/g, 'bar')

In the question, can regular expressions be used instead of substrings?

Answer: "No, because there may be special characters when using substrings to build rules", as follows

> 'hello. HelloX hello3'. Replace (new RegExp ('hello.','g'),'A')

< "AAA" 而在 javascript 中替换子串只能使用一种巧妙的办法：str.split('foo').join('bar') >

'hello.' .split ('hello.'). Join ('A')

< "AAA"

What a clever (stupid) clever (clumsy) way! "maybe TC39 is aware of a problem, so there's a new API," in ESNext.

String.prototype.replaceAll ()

'aabbcc'.replaceAll ('baked,'.')

/ / 'aa..cc' summary (and direct answer)

Two ways

Str.split ('foo'). Join (' bar') str.replaceAll ('foo',' bar'), in ESNext, the current support is not good. The above content is how to replace one substring into another. Have you learned the knowledge or skills? If you want to learn more skills or enrich your knowledge reserve, you are welcome to follow the industry information channel.