How to implement regular substitution in jquery

This article mainly introduces the relevant knowledge of "how to achieve regular replacement in jquery". The editor shows you the operation process through an actual case. The operation method is simple, fast and practical. I hope this article "how to achieve regular replacement in jquery" can help you solve the problem.

In jquery, you can use the replace () function to implement regular substitution, which is used to perform search and replace operations and to replace what matches the regular expression. The syntax is "the text object to be replaced. Replace (regular expression, 'replacement value');".

The operating environment of this tutorial: windows7 system, jquery1.10.2 version, Dell G3 computer.

In jquery, you can use the replace () function to achieve regular substitution.

Example:

Regular substitution

To change the comma of the value of value in input to "-", first use the replace method of jQuery:

$(document) .ready (function () {$("button") .click (function () {var value = $("# name"). Val (); var result = value.replace (',','-'); $("# name") .val (result);})})

As a result, only the first comma is replaced, that is:

1-2, 3, 4.

JQuery does not provide a replaceAll method, so you can use regular expressions to do this:

$(document) .ready (function () {$("button") .click (function () {var value = $("# name") .val (); var reg = new RegExp (',','g'); / / g means global replacement var result = value.replace (reg,'-') $("# name") .val (result);})

The result is:

1-2-3-4 this is the end of the introduction to "how jquery achieves regular substitution". Thank you for reading. If you want to know more about the industry, you can follow the industry information channel. The editor will update different knowledge points for you every day.