JavaScript uses RegExp to implement client-side verification handler _ javascript skills

Use RegExp to check the client: allow the text box to enter only numbers, the text box to enter only Chinese characters, and determine the email input format. The specific implementation is as follows. For more information, see 1. Allow only numbers to be entered in the text box, and use the text box control of asp.net mvc3.0

The Code is as follows:

@ Html. TextBox ("txt", null, new {@ style = "width: 300;", onkeypress = "return RegValidateIsDigit (event )"})

You can see that the onkeypress event is registered in the text box. when you enter a character in the text box and press the keyboard, the JavaScript function is triggered.

The Code is as follows: