How to check a button is clicked or not in JavaScript ?
In this article, we will see how to check whether a button is clicked or not using JavaScript. There are two methods to check a button is clicked, i.e. using onclick, and click events.
Method 1: Using onclick Event: First, we will create a button, then use document.querySelector() to select the button element, and after that apply onclick event to check whether the button is clicked or not.
Example:
HTML
<!DOCTYPE html> <html> <head> <title> How to check a button is clicked or not in JavaScript? </title> <style> body { text-align: center; } h1 { color: green; } input[type="button"] { padding: 5px 10px; margin-top: 10px; } </style> </head> <body> <h1>zambiatek</h1> <h3> How to check a button is clicked or not in JavaScript? </h3> <input type="button" class="button" value="Button" onclick="myGeeks()" > <script> function myGeeks() { document.querySelector(".button").onclick = function() { alert("Button Clicked"); } } </script> </body> </html> |
Output:
Method 2: Using click Event: First, we will create a button, then use document.querySelector() to select the button element, and after that apply addEventListener() and click event to check whether the button is clicked or not.
Example:
HTML
<!DOCTYPE html> <html> <head> <title> How to check a button is clicked or not in JavaScript? </title> <style> body { text-align: center; } h1 { color: green; } input[type="button"] { padding: 5px 10px; margin-top: 10px; } </style> </head> <body> <h1>zambiatek</h1> <h3> How to check a button is clicked or not in JavaScript? </h3> <input type="button" class="button" value="Button" onclick="myGeeks()" > <script> function myGeeks() { document.querySelector(".button") .addEventListener("click", function() { alert("Button Clicked"); }); } </script> </body> </html> |
Output:
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