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This article mainly explains "how to replace the index characters in the string based on JavaScript based on String", interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "how to replace index characters in a string based on JavaScript String".

Core code:

String.prototype.replaceCharAt = function (n, c) {return this.substr (0, n) + c + this.substr;}

Usage example:

JS character substitution String.prototype.replaceCharAt = function (NMagazine c) {return this.substr (0, n) + c + this.substr (Nomi1meme this.milthMurray 1PUBN);} var str = 'welcome to www.jb51.net';console.log (str.replaceCharAt (8meme T'))

The running effect is as follows:

At this point, I believe you have a deeper understanding of "how to replace index characters in a string based on JavaScript based on String". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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