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Detecting an undefined object property
# 🔍 Detecting an Undefined Object Property in JavaScript So, you've stumbled upon the age-old JavaScript question: "How do I check if an object property is undefined?" 🤔 Don't worry, my fellow tech enthusiasts! I'm here to break it down for you in a way
JavaScript closure inside loops – simple practical example
# JavaScript Closure Inside Loops – Understanding the Problem JavaScript closures inside loops can be a bewildering concept for many developers. The common issue arises when you try to create closures in a loop, and the closures access variables outside t
event.preventDefault() vs. return false
# Event.preventDefault() vs. return false: Which is the Better Way to Stop Event Propagation? 🚫🔄✋ You're in the middle of writing some event handling code, and you come across a situation where you need to prevent other event handlers from executing aft
How can I merge properties of two JavaScript objects dynamically?
# Combining Properties of JavaScript Objects Dynamically Are you struggling to merge properties from two JavaScript objects dynamically? 🤔 Don't worry, we've got you covered! In this guide, we'll walk you through a simple solution to combine properties f
Why does my JavaScript code receive a "No "Access-Control-Allow-Origin" header is present on the requested resource" error, while Postman does not?
📝 Blog Post: Why does my JavaScript code receive a "No 'Access-Control-Allow-Origin' header is present on the requested resource" error, while Postman does not? 🤔 Are you struggling with a frustrating error message in your JavaScript code that says "No
How can I check if an object is an array?
## Is it an Array? 🧐 Are you working on a function that needs to be able to handle both a list of strings and a single string? Fear not! Checking whether a variable is an array is easier than you might think. ### The Problem 🚩 You want to write a func
pretty-print JSON using JavaScript
# 🌟 Easy and Pretty JSON Printing with JavaScript! 📝 Are you tired of staring at ugly, cluttered JSON data? Want to make it easier for human eyes to comprehend? Look no further! In this blog post, we'll address the common issue of pretty-printing JSON u
How can I change an element"s class with JavaScript?
# How to Change an Element's Class with JavaScript: A Simple Guide 👨💻 Have you ever wondered how to dynamically change an element's class in your HTML using JavaScript? 🤔 Whether you want to apply different styles to an element based on user interacti
Creating multiline strings in JavaScript
## Creating Multiline Strings in JavaScript: Simplified! 😎 So, a friend of mine recently came to me with a piece of code written in Ruby and asked for its JavaScript equivalent. The code included a multiline string. After some thought, I realized that th
How do I format a date in JavaScript?
# How to Format a Date in JavaScript 📅 So you want to format a JavaScript `Date` object as a string? Preferably in the format: `10-Aug-2010`? No worries, we got you covered! In this guide, we'll walk you through the common issues, provide easy solutions,