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js正则表达式验证密码强度【推荐】
时间:2017-05-18 编辑:简简单单 来源:一聚教程网
效果图:
代码如下:
代码如下 | 复制代码 |
*{margin: 0;padding: 0;} body{background:#ccc;} #demo{width:400px;padding:50px;background:#efefef;border: 1px solid #999;line-height:40px;margin:100px auto 0;} #strength_length{height:6px;width:100px;padding:2px;border: 1px solid #ccc;} .lv1{background:red;} .lv2{background:blue;width:200px;} .lv3{background:green;width:300px;}
密码强度:
(function(window){ function $(id){ return document.getElementById(id); }; var arr = ["","低","中","高"]; // 获取对象 var ipt = $("ipt"),strength = $("strength"),strLength = $("strength_length"); // 密码输入事件 ipt.onkeyup = function(){ var s = 0; var txt = this.value; if( /[a-zA-Z]/.test(txt) ){ s++; }; if( /[0-9]/.test(txt) ){ s++; }; if( /[^0-9a-zA-Z]/.test(txt) ){ s++; }; if( txt.length <6){ s=0; }; strength.innerHTML=arr[s]; strLength.className="lv"+ s; } })(window) |