I saw this post on Reddit about a JavaScript coding assessment and it got me thinking. A common task developers perform is iterating over arrays. And two of the most frequently used methods for this are map() and forEach(). Both seem similar, but the differences can significantly affect how your...

One piece of JavaScript syntax I’ve come to appreciate is the nullish coalescing (??) operator. It’s one of those features that’s easy to overlook until it saves you from a subtle bug. If you’re still using the logical OR (||) operator to provide default values, it’s worth knowing where the...

One habit I’ve picked up over the years using unknown as a default before any. I still use any occasionally, but I’ve become much more intentional about it. The reason is pretty simple: any opts you out of TypeScript’s type checking. That can be convenient when you’re prototyping or working...