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FORM表单 validity setCustomValidity和checkValidity使用

2016-04-09 13:29 549 查看
<!DOCTYPE HTML>

<html>

<body>

<form action="add">

生日:<input id="birth" name="birth" type="date"/><br/>

邮件地址:<input id="email" name="email" type="email"/><br/>

<input type="submit" value="提交" onclick="return check();"/>

</form>

<script>

 function check(e){

var targetEle = document.getElementById("email");

targetEle.oninvalid = function(e){

alert("sd" + JSON.stringify(e.target.validity.valid));

};

//alert(targetEle.checkValidity());

if(!targetEle.checkValidity()){

targetEle.setCustomValidity("mail is not correct");

}

//alert(JSON.stringify(targetEle.validity));

}

</script>

</body>

</html>
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