Web Reference: Nov 15, 2024 · If you're mistakenly calling addEventListener() on an object that doesn't support it, like a plain JavaScript object or array, you’ll get this error. Solution: Verify that the object you're using supports addEventListener(). For example, you should be adding it to DOM elements or other event targets, not to regular objects. 3. How to Resolve the "TypeError: addEventListener is not a function" in JavaScript The TypeError: addEventListener is not a function is a very common error in client-side JavaScript. It occurs when you attempt to call the .addEventListener() method on a value that is not a valid DOM element. Jul 1, 2014 · Any suggestions? Note: Do bear in mind that this question is not about how there is a bug in JS, even if the title may suggest so, it is about how I can't get it to work since I've probably got the syntax wrong. Please feel free to rename it if you wish.
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