jquery密码强度校验

 

<script>

  

//下面的正则表达式建议各位收藏哦，项目上有可能会用得着

$(function(){ 

  $('#pass').blur(function(e) {

    // alert('---------');

     //密码为八位及以上并且字母数字特殊字符三项都包括

     var strongRegex = new RegExp("^(?=.{8,})(?=.*[A-Z])(?=.*[a-z])(?=.*[0-9])(?=.*\W).*$", "g");

    

   //密码为七位及以上并且字母、数字、特殊字符三项中有两项，强度是中等

     var mediumRegex = new RegExp("^(?=.{7,})(((?=.*[A-Z])(?=.*[a-z]))|((?=.*[A-Z])(?=.*[0-9]))|((?=.*[a-z])(?=.*[0-9]))).*$", "g");

     var enoughRegex = new RegExp("(?=.{6,}).*", "g");

     if (false == enoughRegex.test($(this).val())) {

         $('#passstrength').html('More Characters');

     } else if (strongRegex.test($(this).val())) {

         $('#passstrength').className = 'ok';

         $('#passstrength').html('Strong!');

     } else if (mediumRegex.test($(this).val())) {

         $('#passstrength').className = 'alert';

         $('#passstrength').html('Medium!');

     } else {

         $('#passstrength').className = 'error';

         $('#passstrength').html('Weak!');

     }

     return true;

  });

});

</script>

          

<input type="password" name="pass" id="pass" />

<span id="passstrength"></span>