When you want to extract only a part of a string, you use the "substring() method" in JavaScript. In this article, I will explain the basic usage of substring(), as well as its behavior when arguments ...

This post is about how to effectively use the String.prototype.substring() method in JavaScript. We go through a few examples to understand how it works, play around to observe a few patterns and ...

The basic function common to both methods is that they extract a string within a specified range and return it as a new string. It is common to specify two indices as arguments: the "start position" ...

js中有三个截取字符的方法，分别是substring()、substr()、slice()，平时我们可能都用到过，但总是会对这些方法有点混淆，特别是substring()和substr()，连方法名都差不多，下面就具体来看一下区别。

原创 最新推荐文章于 2026-04-18 10:32:09 发布 · 4k 阅读 返回从 start 到 end（不包括）之间的字符，start、end均为非负整数。 若结束参数(end)省略，则表示从start位置一直截取到最后。 返回从 start 到 ...