onClick 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: how to add onclick event in javascript
var element = document.getElementById("elem");
element.onclick = function(event) {
console.log(event);
}
Example 4: onclick a tag
<a href='http://www.google.com' onclick='return check()'>check</a>
<script type='text/javascript'>
function check() {
return false;
}
</script>
Example 5: run a function when a button has the onclick
<script>
function myFunction() {
alert("ALERT THIS FUNCTION HAS RUNNED");
}
</script>
<button onclick="myFunction">click to run function</button>
Example 6: javascript onclick
document.getElementById("Save").onclick = function ()
{
alert("hello");
}