Detailed graphic and text explanation of using regular expressions in jQuery

This time I will bring you a detailed graphic and text explanation of usingregular expressionsin jQuery. What are theprecautionsfor using regular expressions in jQuery? The following is a practical case. , let’s take a look.

Basic regular expressions

1. Creation of regular expressions

a) var checkNum = /^[A-Za-z0-9]+$/; b) var re=new RegExp(“["+s1+"]“,”g”);

2. Common rules

a) 用户密码：/^[a-zA-Z][a-zA-Z0-9_]{5,20}$/ b) 邮件:/^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$/ c) 手机:/^[\d]{5,20}$/ d) 其它常用验证:请百度

3. Method: test

Case

      
  
 用户名：检测  
 邮箱：检测  
 手机：检测  
 
   

Effect Demonstration Picture

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

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Detailed analysis of matching single characters using regular expressions

Detailed explanation of the use of regular metacharacters

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