EN
JavaScript - onclick event for input checkbox element example
6
points
In this article, we would like to show you how to handle the click event for the input checkbox element in JavaScript.
1. onclick
attribute example
// ONLINE-RUNNER:browser;
<!doctype html>
<html>
<body>
<label>
<input type="checkbox" onclick="onClick(this)" /> Agreement
</label>
<script>
function onClick(element) {
console.log('Agreement changed to ' + element.checked + ' by onclick event.');
}
</script>
</body>
</html>
2. onclick
property example
// ONLINE-RUNNER:browser;
<!doctype html>
<html>
<body>
<label>
<input id="agreement" type="checkbox" /> Agreement
</label>
<script>
var agreement = document.getElementById('agreement');
agreement.onclick = function(element) {
console.log('Agreement changed to ' + agreement.checked + ' by onclick event.');
};
</script>
</body>
</html>
3. addEventListener
method example
// ONLINE-RUNNER:browser;
<!doctype html>
<html>
<body>
<label>
<input id="agreement" type="checkbox" /> Agreement
</label>
<script>
var agreement = document.getElementById('agreement');
agreement.addEventListener('click', function(element) {
console.log('Agreement changed to ' + agreement.checked + ' by click event.');
});
</script>
</body>
</html>