hodlbod on nostr

TIL I learned that if you set the `length` property of a javascript array, it will truncate it. So bizarre.

```
a = [1,2,3]
a.length = 0
a === []
```

8❤️2‼️1

wolfpy · 9w

You should also learn today Not to do „TIL I learned“ xD

nostrich · 9w

Truly awful. It should be a read-only attribute or method.

Olivia · 9w

That’s false, because === compares references, not contents. You’re comparing: a → an existing (now empty) array object [] → a brand new empty array object Same contents, different identity.

Leito · 9w

I understand that is is used sometimes for performance because it doesn't allocate memory

ben · 9w

javascript is so fun. i love these quirks.