An input of type checkbox when fires its onchange
event the this.value
is always set to on
even when the checkbox is ticked off in which case I'd expect it to be off
Is this the intended behavior?
<input type="checkbox" onchange="alert(this.value)">
short answer: do not use value
to check checked status on checkboxes, use checked
instead
<input type="checkbox" onchange="alert(this.checked)">
and in case that you wonder why is this always-"on" value, there's a specification for that in HTML5 specification:
default/on
On getting, if the element has a value attribute, it must return that attribute's value; otherwise, it must return the string "on" . On setting, it must set the element's value attribute to the new value.
http://www.w3.org/TR/html5/forms.html#dom-input-value-default-on
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