jquery method to determine whether checkbox is selected

Method: 1. Get the checkbox element, and then use the "get(0).checked)" method to judge; 2. Get the element, and then use the "is(':checked')" method to judge; 3 , get the element, and then use the "ttr('checked')" method to judge.

The operating environment of this tutorial: Windows 7 system, jquery version 1.10.0, Dell G3 computer.

Recommendation: "jquery video tutorial"

jQuery several methods to determine whether the checkbox is selected

Method 1:

if ($("#checkbox-id")get(0).checked) {
    // do something
}

Method Two:

if($('#checkbox-id').is(':checked')) {
    // do something
}

Method Three:

if ($('#checkbox-id').attr('checked')) {
    // do something
}

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