如何使用 jQuery 或纯 JS 重置所有复选框？

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最佳答案

If you mean how to remove the 'checked' state from all checkboxes:

$('input:checkbox').removeAttr('checked');

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The above answer did not work for me -

The following worked

$('input[type=checkbox]').each(function()
{
this.checked = false;
});

This makes sure all the checkboxes are unchecked.

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If you want to use form's reset feature, you'd better to use this:

$('input[type=checkbox]').prop('checked',true);

OR

$('input[type=checkbox]').prop('checked',false);

Looks like removeAttr() can not be reset by form.reset().

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 $(":checkbox:checked").each(function () {


this.click();
});

to unchecked checked box, turn your logic around to do opposite

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I used something like that

$(yourSelector).find('input:checkbox').removeAttr('checked');

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In some cases the checkbox may be selected by default. If you want to restore default selection rather than set as unselected, compare the defaultChecked property.

$(':checkbox').each(function(i,item){
this.checked = item.defaultChecked;
});

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As said in Tatu Ulmanen's answer using the follow script will do the job

$('input:checkbox').removeAttr('checked');

But, as Blakomen's comment said, after version 1.6 it's better to use jQuery.prop() instead

Note that in jQuery v1.6 and higher, you should be using .prop('checked', false) instead for greater cross-browser compatibility

$('input:checkbox').prop('checked', false);

Be careful when using jQuery.each() it may cause performance issues. (also, avoid jQuery.find() in those case. Use each instead)

$('input[type=checkbox]').each(function()
{
$(this).prop('checked', false);
});

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You can be selective of what div or part of your page can have checkboxes checked and which don't. I came across the scenario where I have two forms in my page and one have prefilled values(for update) and other need to be filled fresh.

$('#newFormId input[type=checkbox]').attr('checked',false);

this will make only checkboxes in form with id newFormId as unchecked.

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I have used this before:

$('input[type=checkbox]').prop('checked', false);

seems that .attr and .removeAttr doesn't work for some situations.

edit: Note that in jQuery v1.6 and higher, you should be using .prop('checked', false) instead for greater cross-browser compatibility - see https://api.jquery.com/prop

Comment here: How to reset all checkboxes using jQuery or pure JS?

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<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>


<div class="container check">
<button class="btn">click</button>
<input type="checkbox" name="vehicle" value="Bike">I have a bike<br>
<input type="checkbox" name="vehicle" value="Car">I have a car<br>
<input type="checkbox" name="vehicle" value="Bike">I have a bike<br>
<input type="checkbox" name="vehicle" value="Car">I have a car<br>
</div>
<script>
$('.btn').click(function() {


$('input[type=checkbox]').each(function()
{
this.checked = false;
});
})
</script>
</body>
</html>

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Javascript

var clist = document.getElementsByTagName("input");
for (var i = 0; i < clist.length; ++i) { clist[i].checked = false; }

jQuery

$('input:checkbox').each(function() { this.checked = false; });

To do opposite, see: Select All Checkboxes By ID/Class

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<input type="checkbox" id="bike" name="vehicle" value="bike">
<label for="bike">Bike</label>
<input type="checkbox" id="car" name="vehicle" value="car">
<label for="car">Car</label>
<button id="select">Select All</button>

JavaScript #1

Get all the checkboxes using the name field,

document.getElementById('select').onclick = function() {
var checkboxes = document.getElementsByName('vehicle');
for (var checkbox of checkboxes) {
checkbox.checked = false;
}
}

JavaScript #2

If there is no other input tags other than checkboxes,

document.getElementById('select').onclick = function() {
var checkboxes = document.getElementsByTagName("input");
for (var checkbox of checkboxes) {
checkbox.checked = false;
}
}

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Easy. by class GIVE ME A LIKE

$('.YUCLASS').prop('checked', false);

or

$('.YUCLASS').removeAttr('checked');

Resetall checkbox