Tag: JavaScript troubleshooting

XMLHttpRequest Deprecated in Favor of Fetch: A Detailed Explanation Introduction XMLHttpRequest (XHR) has been a core part of web development for decades, allowing developers to send and receive data from….

FileReader Failing to Read Large Files in JavaScript When working with file uploads in JavaScript, the FileReader API allows reading file contents asynchronously as ArrayBuffer, BinaryString, DataURL, or Text. However,….

Blob URLs Not Revoked, Causing Memory Leaks Introduction In JavaScript, Blob URLs (also known as object URLs) are temporary URLs created by the browser to reference Blob or File objects…..

performance.now() Discrepancies in Workers – A Detailed Explanation Introduction The performance.now() method provides high-resolution timestamps with better precision than Date.now(). However, when used in Web Workers, discrepancies may arise due….

new URL() Throwing Errors for Invalid URLs: A Detailed Guide Overview The new URL() constructor in JavaScript is used to create a new URL object. However, if an invalid URL….

Uncaught TypeError: Illegal constructor (e.g., new Image) in JavaScript In JavaScript, encountering the error “Uncaught TypeError: Illegal constructor” can be frustrating, especially when trying to instantiate certain objects or classes….

decodeURIComponent Throwing Errors for Malformed URIs: Understanding the Issue and Fixing It Overview The JavaScript function decodeURIComponent is used to decode a URI component that has been previously encoded with….

Math.random() Predictability in Secure Contexts JavaScript’s Math.random() function is often used for generating random values in applications such as gaming, cryptography, security tokens, and unique identifiers. However, it is not….

Array.prototype.sort Incorrect Numeric Sorting in JavaScript JavaScript’s Array.prototype.sort() method is commonly used to sort arrays. However, when dealing with numbers, developers often encounter unexpected behavior. This issue occurs because JavaScript’s….