js页面校验

最新推荐文章于 2024-07-03 13:30:00 发布

原创最新推荐文章于 2024-07-03 13:30:00 发布 · 239 阅读

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对用户名的校验：

function checkUsername(){
			var uValue = document.getElementById("username").value;
			var span = document.getElementById("span_username");
			if(uValue.length < 6){
				span.innerHTML = "<font color='red' size='2'>用户名太短</font>";
				return false;
			}else{
				span.innerHTML = "<font color='green' size='2'>用户名可用</font>";
				return true;

			}
		}

对密码的校验：

function checkPassword(){
			var uPass = document.getElementById("password").value;
			var span = document.getElementById("span_password");
			if(uPass.length < 6){
				span.innerHTML = "<font color='red' size='2'>密码太短</font>";
				return false;
			}else{
				span.innerHTML = "<font color='green' size='2'>密码可用</font>";
				return true;

			}
		}

对再次输入密码的校验：

function checkRePassword(){
			var uPass = document.getElementById("password").value;
			var uRePass = document.getElementById("repassword").value;
			var span = document.getElementById("span_repassword");
			if((uPass != uRePass)||(uRePass =="")){
				span.innerHTML = "<font color='red' size='2'>两个密码不一致</font>";
				return false;
			}else{
				span.innerHTML = "<font color='green' size='2'>输入正确</font>";
				return true;
			
			}
		}

对邮箱的校验：

function checkMail() {   
		  	var umail = document.getElementById("email").value;
		  	var flag = /^([A-Za-z0-9_\-\.\u4e00-\u9fa5])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,8})$/;
		  	var span = document.getElementById("span_email");
		  	if(flag.test(umail)){
		  		span.innerHTML = "<font color='green' size='2'>输入正确</font>";
				return true;
		  	}else{
		  		span.innerHTML = "<font color='red' size='2'>邮箱输入错误</font>";
				return false;
		  		
		  		}
		  }