Home > Article > Web Front-end > Detailed explanation of the use of jQuery password strength verification control

Detailed explanation of the use of jQuery password strength verification control

高洛峰Original: 2017-01-07 11:18:421084browse

The example of this article shares the jQuery password strength verification control for your reference. The specific content is as follows

<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <script type="text/javascript" src="jquery-1.12.1.js"></script>
    <style type="text/css">
      .mainPrompt {
        border: #999 solid 1px;
        border-radius: 13px;
        overflow: hidden;
        padding: 1px 2px;
        display: inline-block;
        height: 20px;
      }
      .listPrompt {
        float: left;
        height: 20px;
        width: 56px;
        margin-right: 2px;
        background-color: #eeeeee;
      }
      .bot_text span {
        width: 52px;
        text-align: center;
        display: inline-block;
        line-height: 18px;
      }
    </style>
  </head>
  <body>
    <br/>
    <div>
      <p id="PromptMessage" style="margin-left: 200px;">
          新密码请至少使用字母、数字、符号两种<br/>类型组合的密码，长度为6~20位。</p>
      <input type="text" id="txtPassword" style="float: left;"/ placeholder="请输入密码">
      <div style="margin-left: 30px;font-size: 12px;float: left;">
        <div class="mainPrompt" align="center" bgcolor="#f5f5f5">
          <div class="listPrompt" id="strength_L" style="border-radius: 8px 0px 0px 8px;">
          </div>
          <div class="listPrompt" id="strength_M">
          </div>
          <div class="listPrompt" id="strength_H" style="margin-right: 0px;border-radius: 0 8px 8px 0;">
          </div>
        </div>
        <div class="bot_text">
          <span id="lowStrength">低</span> <span id="midStrength">
            中</span> <span id="highStrength">高</span>
        </div>
      </div>
    <div>
    <script type="text/javascript">
      function JudgyPwdLevel(pwdStr) {
        var hasNumber = 0;
        var hasLetter = 0;
        var hasSymbol = 0
        if (pwdStr.length >= 6) {
          for (var i = 0; i < pwdStr.length; i++) {
            var item = pwdStr[i];
            if (item >= &#39;0&#39; && item <= &#39;9&#39;) { hasNumber = 1; }
            else if ((item >= &#39;a&#39; && item <= "z") || (item >= &#39;A&#39; && item < "Z")) { hasLetter = 1; }
            else { hasSymbol = 1; }
          }
        }
        return hasLetter + hasNumber + hasSymbol;
      }
      //显示颜色 
      function pwStrength(pwd) {
        O_color = "#eeeeee";
        L_color = "#FF0000";
        M_color = "#FF9900";
        H_color = "#33CC00";
        if (pwd == null || pwd == &#39;&#39;) {
          Lcolor = Mcolor = Hcolor = O_color;
        }
        else {
          S_level = JudgyPwdLevel(pwd);
          switch (S_level) {
            case 0:
              Lcolor = Mcolor = Hcolor = O_color;
            case 1:
              Lcolor = L_color;
              Mcolor = Hcolor = O_color;
              break;
            case 2:
              Lcolor = L_color;
              Mcolor = M_color;
              Hcolor = O_color;
              break;
            default:
              Lcolor = L_color;
              Mcolor = M_color;
              Hcolor = H_color;
          }
        }
        document.getElementById("strength_L").style.background = Lcolor;
        document.getElementById("strength_M").style.background = Mcolor;
        document.getElementById("strength_H").style.background = Hcolor;
        return;
      }
      $("#txtPassword").keyup(function(e){
       pwStrength($(e.target).val());
      });
 
    </script>
  </body>
</html>

The above is the entire content of this article. I hope it will be helpful to your study and I hope you will support it. PHP Chinese website.

For more detailed explanations on the use of the jQuery password strength verification control, please pay attention to the PHP Chinese website!

Statement：

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Previous article：Add, delete, and modify HTML tables using JSNext article：Add, delete, and modify HTML tables using JS

See more

Detailed explanation of the use of jQuery password strength verification control

Related articles