button onclick call function code example
Example 1: javascript onclick
document.getElementById("myBtn").addEventListener("click", function() {
alert("Hello World!");
});
Example 2: HTML button onclick
<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
</head>
<body>
<p>There is a hidden message for you. Click to see it.</p>
<button onclick="myFunction()">Click me!</button>
<p id="demo"></p>
<script>
function myFunction() {
document.getElementById("demo").innerHTML = "Hello Dear Visitor!</br> We are happy that you've chosen our website to learn programming languages. We're sure you'll become one of the best programmers in your country. Good luck to you!";
}
</script>
</body>
</html>
Example 3: javascript onclick get event
<div onclick="doSomething(event,this)"></div>
<script>
function doSomething(e,el){
e = e || window.event;
console.log(e);
console.log(el);
}
</script>
Example 4: javascript click event
<button onclick="myFunction()">Click me</button>
<p id="demo"></p>
<script>
function myFunction() {
document.getElementById("demo").innerHTML = "Hello World";
}
</script>
Example 5: button click function in js
<script>
$(document).ready(function(){
$('#MyButton').click(function(){
CapacityChart();
});
});
</script>
<input type="button" value="Capacity Chart" id="MyButton" >