Why does the onclick handler below trigger an "elem.parentNode is not a function" error?
<html>
<head>
<script type="text/javascript">
function getParent(elem) {
var parent = elem.parentNode();
}
</script>
</head>
<body>
<div style="border: solid black 2px">
<span onclick="getParent(this)">hello</span>
</div>
</body>
</html>
Your problem is that parentNode is not a function. Try removing the ()
.
parentNode是一个属性,而不是一个函数。
var parent = element.parentNode;
Because parentNode
is not a function? Try elem.parentNode
without the parenthesis.
it should be
function getParent(elem) {
var parent = elem.parentNode;
}
It's not a function. It's a property. Lose the parentheses.
var parent = elem.parentNode;
parentNode is a property not a function. Drop the () and it should work.
parentNode不是一个函数,它是一个属性。
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