How Do I Programmatically Check a Checkbox with jQuery?

Setting "checked" for a checkbox with jQuery

You can set the "checked" attribute of a checkbox using the .prop() method in jQuery:

$('.myCheckBox').prop('checked', true);

If you're working with jQuery versions prior to 1.6, you can use the .attr() method instead:

$('.myCheckBox').attr('checked', true);

You can also use the underlying HTMLInputElement to modify the .checked property:

$('.myCheckBox')[0].checked = true;

One should use .prop() and .attr() methods instead of this as they will operate on all matched elements.

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