Alli Balogun Pharoouq Alli Balogun Pharoouq - 4 years ago 123
Javascript Question

How to detect html switch state with javascript

I have a HTML switch button (on/off) and I need to detect if it is on or off with JavaScript. Please help on how to do that?

Here is my fiddle with the switch

Answer Source

try this

// checking if the switch is on or off

var cb = document.getElementById("cmn-toggle-2");
cb.onclick = function() {
	if (cb.checked) alert('The Switch is ON!');
        else alert('The Switch is OFF!');
		.cmn-toggle {
		  position: absolute;
		  margin-left: -9999px;
		  visibility: hidden;
		.cmn-toggle + label {
		  display: block;
		  position: relative;
		  cursor: pointer;
		  outline: none;
		  user-select: none;

		input.cmn-toggle-round + label {
  padding: 2px;
  width: 120px;
  height: 60px;
  background-color: #dddddd;
  border-radius: 60px;
input.cmn-toggle-round + label:before,
input.cmn-toggle-round + label:after {
  display: block;
  position: absolute;
  top: 1px;
  left: 1px;
  bottom: 1px;
  content: "";
input.cmn-toggle-round + label:before {
  right: 1px;
  background-color: #f1f1f1;
  border-radius: 60px;
  transition: background 0.4s;
input.cmn-toggle-round + label:after {
  width: 58px;
  background-color: #fff;
  border-radius: 100%;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
  transition: margin 0.4s;
input.cmn-toggle-round:checked + label:before {
  background-color: #8ce196;
input.cmn-toggle-round:checked + label:after {
  margin-left: 60px;
<div style="text-align: center;">
<div class="switch">
  <input id="cmn-toggle-2" class="cmn-toggle cmn-toggle-round" type="checkbox">
  <label for="cmn-toggle-2"></label>

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