Let’s say the following is our button −
<button onclick="displayingMessageOnButtonClick()">Press Me</button>
We need to call a function on the click of above button.
Example
Following is the code −
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<body>
<p id="showTheTextMessage"></p>
<button onclick="displayingMessageOnButtonClick()">Press Me</button>
</body>
<script>
function displayingMessageOnButtonClick() {
const showMessage = document.getElementById('showTheTextMessage');
showMessage.innerHTML = 'Welcome to Javascript Program...';
showMessage.style.display = 'block';
}
</script>
</html>To run the above program, save the file name anyName.html(index.html). Right click on the file and select the option “Open with live server” in VS Code editor −
Output
The output is as follows −

Now, press the button. Following is the output −
