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JavaScript Password Strength check code (two methods) _javascript tips

Source: Internet
Author: User
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First look at the effect of the picture:

JavaScript Password Strength Check code, the specific implementation of the idea is not much to say, please see the following code and demo.

The first method:


 * * Password security 
 *return: All letters or numbers, or password length less than
 *return: alphanumeric composition, or special characters, or numbers and special characters
 *return: Letters and numbers and special characters
 */
 String.prototype.passwordstrength=function () {
 if (this.length> && this.length<=) return;
 var n = (This.search (/[a-za-z]/)!=-)? :,
 n = (this.search (/[-]/)!=-)?:,
 n = (this.search (/[\~\ ' \!\@\#\$\%\^\&\*\ (\) \_\+\-\=\[\]|{ \}\;\ ' \:\ ' \,\.\/\<\>\?] {,}/) != -) ? : ; 
 return n+n+n;
 }

Demo

 <!doctype html>

The second method:

The JavaScript code is as follows:

<script> function authpasswd (string) {if (String.Length >=6) {if (/[a-za-z]+/.test (string) &&/[0-9]+/
 . Test (String) &&/\w+\d+/.test (String)) {noticeassign (1); }else if (/[a-za-z]+/.test (string) | |/[0-9]+/.test (STRING) | |/\w+\d+/.test (STRING)) {if (/[a-za-z]+/.test (String) &
  amp;&/[0-9]+/.test (String)) {noticeassign (-1);
  }else if (/\[a-za-z]+/.test (String) &&/\w+\d+/.test (String)) {noticeassign (-1);
  }else if (/[0-9]+/.test (String) &&/\w+\d+/.test (String)) {noticeassign (-1);
  }else{noticeassign (0); 
 }}else{noticeassign (null);
 } function noticeassign (num) {if (num = = 1) {$ (' #weak '). CSS ({backgroundcolor: ' #009900 '});
 $ (' #middle '). CSS ({backgroundcolor: ' #009900 '});
 $ (' #strength '). CSS ({backgroundcolor: ' #009900 '});
 $ (' #strength '). html (' strong ');
 $ (' #middle '). html (');
 $ (' #weak '). html (');
 }else if (num = = 1) {$ (' #weak '). CSS ({backgroundcolor: ' #ffcc33 '});
 $ (' #middle '). CSS ({backgroundcolor: ' #ffcc33 '}); $('#strength '). CSS ({backgroundcolor: '});
 $ (' #weak '). html (');
 $ (' #middle '). html (' Medium ');
 $ (' #strength '). html (');
 }else if (num ==0) {$ (' #weak '). CSS ({backgroundcolor: ' #dd0000 '});
 $ (' #middle '). CSS ({backgroundcolor: '});
 $ (' #strength '). CSS ({backgroundcolor: '});
 $ (' #weak '). html (' weak ');
 $ (' #middle '). html (');
 $ (' #strength '). html (');
 }else{$ (' #weak '). html ('   ');
 $ (' #middle '). html ('   ');
 $ (' #strength '). html ('   ');
 $ (' #weak '). CSS ({backgroundcolor: '});
 $ (' #middle '). CSS ({backgroundcolor: '});
 $ (' #strength '). CSS ({backgroundcolor: '}); }} </script>

The above two ways to introduce the JavaScript password strength check code, I hope to help.

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Related Keywords:
password methods two dimensional array in javascript example code php password strength date javascript methods password encryption methods javascript document methods list json methods javascript
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