When implementing a language feature for JavaScript, an implementer must make decisions about how the language in the specification maps to the implementation. Sometimes this is fairly simple, where the specification and implementation can share much of t... (more…)

Recently I needed a way to detect support for a media query in CSS and Javascript. To detect if a browser supports a certain CSS feature, you can use @supports () { ... }, but that doesn’t work for media queries. In this article I’ll show you how you can ... (more…)

My problem is that you'd often see that JavaScript is actually being transported over the web with all the useless stuff that doesn't need to be there -- Comments, particularly those containing lic... (more…)

Avoid using new Array() in JavaScript Best javascript Tutorials, Articles, Tips and Tricks by Yogesh Chauhan. Well written, nicely organized, simple to learn and easy to understand Web development building tutorials with lots of examples of how to use jav... (more…)

Do you know JavaScript arrays can have holes? How are empty slots different from undefined? And how do you differentiate between both? This article dives into sparse arrays and explains various way… (more…)