Tech notes. Contribute to rspivak/2x25 development by creating an account on GitHub. (more…)

Explaining prototypal inheritance in JavaScript to the last detail... (more…)

A map is one of the most frequently used data structures in daily programming. It keeps key-value pairs that can easily be accessed by their keys. In Java, it is pretty obvious to use a HashMap for… (more…)

Yulia Startsev, a JavaScript engineer on Firefox's SpiderMonkey team, introduces her new Twitch stream called Compiler Compiler. In the three opening interactive episodes, we get an inside look at how ... (more…)

Earlier today, I was briefly entertaining the idea of writing a library to wrap and enhance querySelectorAll in certain ways. I thought I’d rather not introduce a Parsel dependency out of the box, but only use it to parse selectors properly when it’s avai... (more…)