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How to Get a Target Element Using onclick() in JavaScript

Discover how to effectively utilize the `onclick()` function in JavaScript to get target elements with practical examples and solutions. --- This video is based on the question https://stackoverflow.com/q/77795821/ asked by the user 'jacq_fr' ( https://stackoverflow.com/u/22633398/ ) and on the answer https://stackoverflow.com/a/77795879/ provided by the user 'David' ( https://stackoverflow.com/u/328193/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions. Visit these links for original content and any more details, such as alternate solutions, comments, revision history etc. For example, the original title of the Question was: How to get target element with onclick() javascript Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l... The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license. If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com. --- Understanding the Challenge: Accessing Target Elements with onclick() in JavaScript When working with JavaScript, especially for event handling, it's common to need to access the specific element that was interacted with. For instance, the onclick() event allows us to run code when an element is clicked. However, a common confusion arises around accessing the target element specifically with onclick() versus using addEventListener(). In this guide, we'll tackle the issue of how to successfully retrieve the target element using the onclick() function and explore the right approach to achieve it. The Problem Statement In your function using onclick(), you may have noticed behavior that returns undefined when trying to log the target element with e.target. This is often because onclick() does not inherently provide the same event handling capabilities as addEventListener(). Here's a look at the setup you've shared: [[See Video to Reveal this Text or Code Snippet]] And your current function to retrieve the target element: [[See Video to Reveal this Text or Code Snippet]] The Solution: Accessing the Target Element Correctly Method 1: Using this Keyword If your intention is to retrieve the element that triggered the event, you can simply pass the element itself to the function using the this keyword. The code would look like this: [[See Video to Reveal this Text or Code Snippet]] Here, you're directly logging e, which effectively is the element that was clicked, because this points to the element in the context of the onclick(). Therefore, you should see the appropriate element in your console. Revised HTML: [[See Video to Reveal this Text or Code Snippet]] Method 2: Passing the Event Object If, however, you wish to access the entire event object — which includes a lot of useful information, such as target — you should pass the event object instead of this. Here's how you do it: [[See Video to Reveal this Text or Code Snippet]] Updated HTML: [[See Video to Reveal this Text or Code Snippet]] Summary of the Solutions Using this: This allows you to directly access the element being clicked without confusion. Pass this in onclick() like onclick="check(this)". Logs the element itself. Using the Event Object: This method provides more context about the occurrence. Pass the event object, onclick="check(event)". Access the target via e.target. Conclusion Understanding how to work with the onclick() function in JavaScript is essential for effective interaction with dynamic web content. By employing the above methods, you can easily retrieve and manipulate the target elements when handling clicks. Feel free to experiment with these techniques in your projects. troubleshooting these concepts will solidify your grasp of event handling in JavaScript!