js表单验证密码(确认密码)

1. 案例需求：在注册时，输入密码对其进行密码强度验证，并判断两次输入的密码是否一致。例如，密码长度至少8位，并且英文与数字组合。
2. 代码实现

<p>输入密码：<input type="password" id="pwd1"  name="pwd1" onblur="isPwd()" /><br/>
    <span id="pwd1Span"  style="color: red;font-family: 楷体"></span></p>
<p>确认密码：<input type="password" id="pwd2"  name="pwd2" onblur="isCom()" /><br/>
    <span id="pwd2Span" style="color: red;font-family: 楷体"></span></p>

<script>
		//密码校验
        function isPwd(){
            var text= document.getElementById("pwd1").value;
            var re =/^(?=.*[a-z])(?=.*\d)[^]{8,16}$/;
            var result =  re.test(text);
            if(!result) {
                document.getElementById("pwd1Span").innerHTML = "密码必须包含数字,字母,且不少于8位";
                return false;
            }else {
                document.getElementById("pwd1Span").innerHTML = "";
                return true;
            }
        };
        //确认密码
        function isCom(){
            var text1= document.getElementById("pwd1").value;
            var text2= document.getElementById("pwd2").value;
            if (text2 == text1){
                document.getElementById("pwd2Span").innerHTML = "";
                return true;
            }else {
                document.getElementById("pwd2Span").innerHTML = "两次输入的密码不一致";
                return false;
            }
        }
    </script>

3.效果图