首页手记定时器将捕获事件委托到父级，取消点击同级元素无限循环。。

定时器将捕获事件委托到父级，取消点击同级元素无限循环。。

标签：

Html/CSS JavaScript

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8"/>
<title>Title</title>
</head>
<body>
<form id="form">
<input id="a" type="text" title="1">
<input id="b" type="text" title="2">
<input id="c" type="text" title="3">
<button>23</button>
</form>
</body>
</html>
<script type="text/javascript">
var form = document.getElementById('form');
form.addEventListener('blur', hand,true)
function hand(event) {
event.stopPropagation();
var tar=event.target;
if(!tar.value){
alert("!");
tar.value=" ";
setTimeout(function (){
tar.value="";
},0);
tar.focus();
}
}
</script>