What's a JavaScript concept that you're still confused about?

Valentino Gagliardi on June 12, 2019

To all the JavaScript developers out there (beginners and more experienced): what's a JavaScript concept that still confuses you? Don't be shy and ... [Read Full]
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Did you know that in JavaScript, classes are functions? Oh, and functions are actually objects. Oh, and, to complete the loop, the objects in JavaScript inherit from Object class. Wait, what?

Once you get some experience in JavaScript and start playing around, you start wondering, why does this return a function: Object.getPrototypeOf(()=>{})? And what happens if I call it?

Also, combining with and Proxies can make JavaScript significantly more WEIRD, like weird to the point of actually making 0 sense at all.

 

+1 to the closures!

I mean, I understand the concept and the basic examples, but they're making me go crazy with React Hooks.

 

Why does

caches.match()

Dont reject on error but return undefined 😂

developer.mozilla.org/en-US/docs/W...

 
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