WebSocket Connection Failures – In-Depth Explanation WebSockets provide a full-duplex communication channel over a single TCP connection, allowing real-time communication between a client (browser) and a server. However, WebSocket connections….
fetch() Not Handling Network Errors – Detailed Explanation and Fixes The fetch() API in JavaScript is used to make network requests. However, many developers misunderstand how it handles network errors,….
Uncaught TypeError: Super expression must be a constructor Overview This JavaScript error occurs when using the super keyword incorrectly while extending a class. The error typically happens in ES6+ class-based….
WeakMap/WeakSet Not Preventing Memory Leaks in JavaScript WeakMap and WeakSet are specialized collections in JavaScript designed to handle objects with weak references, allowing them to be garbage collected when there….
Proxy Revoking Causing Inaccessible Objects in JavaScript Introduction to Proxy and Revocable Proxy JavaScript provides the Proxy object, which allows you to define custom behavior for fundamental operations such as….
Incorrect Use of async in forEach Loops in JavaScript Introduction JavaScript provides the forEach method to iterate over arrays, but when combined with async/await, it does not behave as expected…..
Understanding addEventListener Firing Multiple Times in JavaScript When working with event listeners in JavaScript, you may encounter a situation where an event listener is firing multiple times unexpectedly. This can….
JavaScript is one of the most popular and powerful programming languages, and mastering it opens up endless opportunities for web development, building interactive websites, and even developing server-side applications. Whether….
Modifying Objects During Iteration in JavaScript: A Comprehensive Guide Introduction Modifying objects (or arrays) while iterating over them is a common but tricky operation in JavaScript. If done incorrectly, it….
“Cannot set property ‘x’ of null” in JavaScript – A Detailed Guide Introduction The error “Cannot set property ‘x’ of null” occurs in JavaScript when you attempt to access or….
