How to get the ID of the clicked button using JavaScript/jQuery ?
Last Updated :
22 Aug, 2024
To get the ID of a clicked button using JavaScript/jQuery means identifying which specific button was clicked within a webpage. This is useful when multiple buttons exist, and you need to distinguish between them based on their unique ID for further processing.
So, to get the ID of the clicked button using JavaScript/jQuery we have different approaches which are as follows:
Approach 1: Using JavaScript onClick event
The JavaScript onClick event approach involves adding the onclick attribute to each button. When clicked, the button’s ID is passed to a function, enabling you to identify the clicked button and perform specific actions.
Example: This example sets an onClick event to each button, when the button is clicked, the ID of the button is passed to the function then it prints the ID on the screen.Â
html
<!DOCTYPE HTML>
<html>
<head>
<title>
Get the ID of the clicked button
using onClick event in JavaScript
</title>
</head>
<body style="text-align:center;">
<h1 style="color:green;">
GeeksForGeeks
</h1>
<p id="GFG_UP" style="font-size: 15px;
font-weight: bold;">
</p>
<button id="1" onClick="GFG_click(this.id)">
Button1
</button>
<button id="2" onClick="GFG_click(this.id)">
Button2
</button>
<button id="3" onClick="GFG_click(this.id)">
Button3
</button>
<p id="GFG_DOWN" style="color:green;
font-size: 20px;
font-weight: bold;">
</p>
<script>
let el_up = document.getElementById("GFG_UP");
let el_down = document.getElementById("GFG_DOWN");
el_up.innerHTML = "Click on button to get ID";
function GFG_click(clicked) {
el_down.innerHTML = "ID = " + clicked;
}
</script>
</body>
</html>
Output:
Approach 2: Using jQuery on() Method
The jQuery on() method dynamically attaches click events to elements. It captures the button’s ID using $(this).attr(“id”) when clicked. This approach is flexible, handling both static and dynamically generated buttons efficiently within the DOM.
Syntax:Â
$(selector).on(event, childSelector, data, function, map);
Example: This example sets an onClick event by using the on() method for each button, When the button is clicked, the ID of the button is passed to the function, and then print the ID on the screen.Â
html
<!DOCTYPE HTML>
<html>
<head>
<title>
Get the ID of the clicked button
using jQuery
</title>
<script src=
"https://ajax.googleapis.com/ajax/libs/jquery/3.4.0/jquery.min.js">
</script>
</head>
<body style="text-align:center;">
<h1 style="color:green;">
GeeksForGeeks
</h1>
<p id="GFG_UP" style="font-size: 15px;
font-weight: bold;">
</p>
<button id="1"> Button1</button>
<button id="2"> Button2</button>
<button id="3"> Button3</button>
<p id="GFG_DOWN" style="color:green;
font-size: 20px;
font-weight: bold;">
</p>
<script>
$('#GFG_UP').text("Click on button to get ID");
$("button").on('click', function () {
let t = (this.id);
$('#GFG_DOWN').text("ID = " + t);
});
</script>
</body>
</html>
Output:
Approach 3: Using jQuery click() Method
This method triggers the click event, or adds a function to run when a click event occurs. Click event occurs when an element is clicked.Â
Syntax:Â
- Trigger the click event for the selected elements:Â
$(selector).click();
- Adds a function to the click event:Â
$(selector).click(function);
Example: This example sets an onClick event by using the click() method for each button, When the button is clicked, the ID of the button is passed to the function, and then print the ID on the screen.Â
html
<!DOCTYPE HTML>
<html>
<head>
<title>
Get the ID of the clicked button
using jQuery
</title>
<script src=
"https://ajax.googleapis.com/ajax/libs/jquery/3.4.0/jquery.min.js">
</script>
</head>
<body style="text-align:center;">
<h1 style="color:green;">
GeeksForGeeks
</h1>
<p id="GFG_UP" style="font-size: 15px;
font-weight: bold;">
</p>
<button id="1"> Button1</button>
<button id="2"> Button2</button>
<button id="3"> Button3</button>
<p id="GFG_DOWN" style="color:green;
font-size: 20px;
font-weight: bold;">
</p>
<script>
$('#GFG_UP').text("Click on button to get ID");
$("button").click(function () {
let t = $(this).attr('id');
$('#GFG_DOWN').text("ID = " + t);
});
</script>
</body>
</html>
Output:
jQuery is an open-source JavaScript library that simplifies the interactions between an HTML/CSS document, It is widely famous for it’s philosophy of “Write less, do more”. You can learn jQuery from the ground up by following this jQuery Tutorial and jQuery Examples.
Similar Reads
How to count the number of times a button is clicked using JavaScript ?
At times, it becomes necessary to monitor the number of times a user clicks a button. In this article, we are going to learn how to count the number of times a button is clicked using JavaScript Below are the approaches to count the number of times a button is clicked using JavaScript Table of Conte
3 min read
How to Change the Text of a Button using jQuery?
Here is the question to Change the Text of a Button using jQuery. To do this task, we can use the following two methods: prop() method: It is used to set property values, it sets one or more property for the selected elements. Syntax: $(selector).prop(para1, para2) Approach: Get the text from the
2 min read
How to Change the ID of Element using JavaScript?
We are given an element and the task is to change the ID of elements using JavaScript. ID is unique for any element and it can be assigned to an element only once. JavaScript provides a method to access this id and also to manipulate the id. Syntax:Selected_element.id = newID;Below are the appraoche
3 min read
How to Change the Button Label when Clicked using JavaScript ?
Changing the Label of the Button element when clicked in JavaScript can be used to provide more information to the user such as the text of the Submit button will change to the Submitted as soon as the form submission is completed. The below approaches can be used to accomplish this task: Table of C
2 min read
How to send row data when clicking button using JavaScript ?
Sending row data when clicking a button using JavaScript refers to capturing data from a specific table row (or similar structure) when a button within that row is clicked. This data can then be processed or sent to a server for further actions, like form submission. Approach:HTML Table Structure: E
2 min read
How to get the outer html of an element using jQuery ?
Sometimes, there is a need to get the entire HTML element by its id and not merely its contents, for doing so, we shall use the HTML DOM outerHTML Property to get the outer HTML of HTML element. Syntax: document.getElementById("your-element-id").outerHTML) You can use a variable and initialize it to
2 min read
How to hide/show an image on button click using jQuery ?
In this article, we will see how we can hide or show any particular image in jQuery when a button gets clicked. This is quite easy to do with some lines of jQuery code. Before we jump to the topic, let's know which methods of jQuery will be used for this. So there is a method called show() and anoth
3 min read
How to change a button text on click using localStorage in Javascript ?
In this article, we will learn how to change a button text using Javascript localStorage when we click on the button achieved by adding HTML onclick event listener. Approach: HTML DOM Window localStorage allows us to store key-value pairs in our browser using an object. The name of the key should be
3 min read
How to get form data using JavaScript/jQuery?
The serializeArray() method creates an array of objects (name and value) by serializing form values. This method can be used to get the form data. Syntax: $(selector).serializeArray() Parameter: It does not accept any parameter. Return Value: It returns all the value that is inside the inputs fields
1 min read
How to get the class of a element which has fired an event using JavaScript/JQuery?
One can use JavaScript and JQuery to retrieve the class of an element that triggers an event. By capturing the event and accessing the class attribute, developers can dynamically identify the specific element involved in the interaction. Below are the methods to get the class of an element that has
3 min read