How to call a JavaScript function on click?



To call a function on click of a button in JavaScript, use onclick. Try to run the following code to call a function onclick in JavaScript −

Example

<html>    <head>       <script>          function sayHello() {             document.write ("Hello there!");          }       </script>    </head>    <body>       <p>Click the following button to call the function</p>       <form>          <input type = "button" onclick = "sayHello()" value = "Say Hello">       </form>       <p>Use different text in write method and then try...</p>    </body> </html>
Updated on: 2020-06-19T11:23:44+05:30

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