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JS implementation of code examples to select all and none
- Guanhuiforward
- 2020-07-28 18:27:262779browse
The example in this article shares with you the specific code of js to implement all selection and none selection for your reference. The specific content is as follows
A few very concise lines of native js To achieve all selection and none selection, masters can add the inverse selection function on this basis.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>全选、全不选</title>
</head>
<body>
<table border="1">
<tr>
<td><input type="checkbox" name="mmAll" onclick="All(this, 'mm[]')"></td>
</tr>
<tr><td><input type="checkbox" value="1" name="mm[]" class="check" id="ids1" onclick="Item(this, 'mmAll')"></td></tr>
<tr><td><input type="checkbox" value="2" name="mm[]" class="check" id="ids2" onclick="Item(this, 'mmAll')"></td></tr>
<tr><td><input type="checkbox" value="3" name="mm[]" class="check" id="ids3" onclick="Item(this, 'mmAll')"></td></tr>
<tr><td><input type="checkbox" value="4" name="mm[]" class="check" id="ids4" onclick="Item(this, 'mmAll')"></td></tr>
<tr><td><input type="checkbox" value="5" name="mm[]" class="check" id="ids5" onclick="Item(this, 'mmAll')"></td></tr>
<tr><td><input type="checkbox" value="6" name="mm[]" class="check" id="ids6" onclick="Item(this, 'mmAll')"></td></tr>
</table>
</body>
</html>
<script type="text/javascript">
//Check all
function All(e, itemName)
{
var aa = document.getElementsByName(itemName);
for (var i=0; i < aa.length; i++)
aa[i].checked = e.checked; //得到那个总控的复选框的选中状态
}
//Single select
function Item(e, allName)
{
var all = document.getElementsByName(allName)[0];
if(!e.checked) all.checked = false;
else
{
var aa =document.getElementsByName(e.name);
for (var i=0; i<aa.length; i++)
if(!aa[i].checked) return;
all.checked= true;
}
}
</script>Rendering:
Recommended tutorial: "JS Tutorial"
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