addEventListener is not a function (problem solved) JAVASCRIPT

Cannot read property 'addEventListener' of null

JavaScript : Why doesn't document.addEventListener('load', function) work in a greasemonkey script?

window.onload Doesn't Work, Images Not Finished Loading - Javascript

Event Handlers vs Event Listeners in JavaScript 👨‍💻💯

jQuery : Javascript addEventListener onStateChange not working in IE

Cannot read property 'addEventListener' of null

How to fix "TypeError: Cannot read properties of null (reading addEventListener)" - Ep 12

Chrome JavaScript not working, refreshing, or loading

JavaScript : ".addEventListener is not a function" why does this error occur?

JavaScript Tutorial For Beginners #41 - Window onLoad Event

JavaScript Window onload to execute script as soon as page loads and difference between body onload

JavaScript Tutorial in Hindi for Beginners [Part 58] - Page Load Events in JavaScript

How to Trigger Two Functions With One Button in Javascript

Solved: jQuery Is not working, .click .mouseenter event Problem

load VS DOMContentLoaded Event

javascript - iframe contentWindow postMessage to cross domain action, message event

onclick event in JavaScript . Addeventlistener in JavaScript

Explaining and Solving "Cannot read property addEventListener of null"

JavaScript DOM Tutorial #18 - DOMContentLoaded Event