How to Get an Element's ID from Event Listeners using jQuery and JavaScript?

Getting the Element's ID in Event Listeners with jQuery and JavaScript

In order to effectively handle event interactions in JavaScript, identifying the element responsible for the event is crucial. Here's how to retrieve the ID of the element that triggered the event using jQuery and vanilla JavaScript.

jQuery Approach

jQuery provides an efficient method to access the target element that fired an event. Within the event listener function, the event parameter contains several useful attributes. One such property is event.target, which refers directly to the element that initiated the event.

To retrieve the ID of the element, simply use the following syntax:

event.target.id

Example:

$(document).ready(function() {
  $("a").click(function(event) {
    alert(event.target.id);
  });
});

Vanilla JavaScript Approach

While jQuery simplifies the process, vanilla JavaScript offers another way to access the ID of the triggering element. The current target element is always passed as the first argument of event listeners in vanilla JavaScript. This argument can be named arbitrarily, but event is a common convention.

To get the ID of the element, use the following syntax:

event.target.id

Example:

document.addEventListener("click", function(event) {
  alert(event.target.id);
});

Note:

It's essential to consider that the event object is not a jQuery object in the vanilla JavaScript approach. To use jQuery functions on the target element, wrap it within the $() syntax:

$(event.target).append(" Clicked");

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