button onclick javascript dom code example
Example 1: 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 2: onclick in js
<input type="text" name="text" id="test" onmouseover="skriv('klick')">
<input type="button" name="send" value="Skicka" id="klick" onclick="skriv('test')">
<script src="lib/script.js"></script>
// in lib/script.js
function skriv(name) {
document.getElementById(name).style.backgroundColor='red';
}