With statement causing scope confusion
with Statement Causing Scope Confusion in JavaScript The with statement in JavaScript is considered problematic because it can lead to scope confusion and unpredictable behavior. Due to these issues, it….
Tag: JavaScript debugging
Uncaught Reference Error: process is not defined (Browser)
Uncaught ReferenceError: process is not defined (Browser) This error occurs when JavaScript code running in a browser environment tries to access process, which is a global object available in Node.js….
XMLHttp Request deprecated in favor of fetch
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….
File Reader failing to read large files
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
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
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
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)
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….
Decode URI Component throwing errors for malformed URIs
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
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….