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jQuery interpretation of the difference between empty, remove and detach
jQuery interpretation of the difference between empty, remove and detach
Use a comparison table to explain the differences between several methods
Method name |
Parameters |
The event bound to the removed element and Whether the data is also removed |
Whether the element itself is removed |
empty |
无 |
##是 |
No |
| ##remove
| ##SelectorExpressionclass
remove(“tag”):
| Yes||
##The parameters are the same as remove |
No |
The situation is the same as remove |
The code is as follows:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<script type="text/javascript" src="jquery-1.11.0.js" ></script>
<script type="text/javascript">
$(function() {
var $p2=$("#p2");
$p2.data("value", 1);
$("#detach").on("click", function() {
$p2.detach();
});
$("#back").on("click", function() {
$("#p1").append($p2);
console.log($("#p2").data("value"));
});
});
</script>
</head>
<body>
<p id="p1">
<p id="p2">
p2
</p>
<p id="p3">
p3
</p>
</p>
<input value="detach" id="detach" type="button" />
<input value="back" id="back" type="button" />
</body>
</html>directly The running results are as follows:
## Click detach and the running results are as follows: 
##Click back to run the result as shown below: 
#If you change detach to remove, then after clicking back, the console will display undefined.
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