Apr 28, 2016 · Here are 12 hacks for JavaScript to improve performance: 1 - converting to boolean using !! operator; 2 - converting to number using + operator. See more.

The JavaScript global isFinite() checks if a value is a valid (finite) number. See MDN for the difference between Number.isFinite() and global isFinite().

Nov 28, 2023 · Get ready to amplify your JavaScript prowess! Dive with me into our comprehensive guide, where I’ll reveal 21 exclusive, expert-level JavaScript hacks that seasoned developers like myself use...

Basics – Introduction to JavaScript syntax. Learn how to include the scripts on a HTML page, how to declare a function, target a DOM element by it ID, how to output the data and how to write comments.

Aug 16, 2017 · In this article—which doesn't require you to make your own apps, or even to have particularly deep product knowledge—I'll explain how to use JavaScript to create useful browser hacks that enhance your web experiences and boost productivity.

Jul 17, 2024 · JavaScript hacks not only showcase the language’s flexibility but also provide practical insights to streamline your code, improve performance, and approach development challenges with...

They can be used with continue and break when doing nested loops or nested switches, but you'll almost never run into them. Due to their rarity they may cause confusion, and so i'd generally recommend against using them unless you have a compelling reason to do so. inner: for (var j = 0; j < 10; j++) { console.log(i, j) if (j == 2) { break outer;

Dec 11, 2024 · With over 15 years of experience building complex web applications, I‘ve compiled this definitive guide on JavaScript hacks that can help any developer write faster, cleaner code. Whether you‘re working solo on side projects or leading teams at enterprise companies, these proven tips will optimize your workflow.

Jun 8, 2021 · Most of these JavaScript Hacks uses techniques from ECMAScript6 (ES2015) onwards, though the latest version is ECMAScript11 (ES2020). Note: All below tricks have been tested on the Console of Google Chrome. 1. Declare and Initialize Arrays. We can initialize array of particular size with default values like "", null or 0.

May 17, 2024 · Here are super hacks that will make you a more efficient and effective JavaScript developer, with detailed explanations and examples for each one. 1. Use `let` and `const` Instead of `var`