How to check if a checkbox is checked using JavaScript?
Find out how to check the state of a checkbox, looking if it is checked or not, using JavaScript
Inspect the checked property of the element.
Say you have this checkbox:
<input type="checkbox" class="checkbox" />You can see if it’s checked using
document.querySelector('.checkbox').checkedYou can also check if looking for .checkbox:checked does not return null:
document.querySelector('.checkbox:checked') !== nullbut I think looking for .checked is cleaner.
Do NOT use getAttribute() looking for the checked attribute value, because that’s always true if the checkbox is checked by default in this way:
<input type="checkbox" checked />Also don’t check for the value of a checkbox element. It’s always on, regardless whether the checkbox is checked or not.
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