Discussion on: Javascript Clean Code Tips & Good Practices

[Keff]

Nice list, quite complete.

Just one thing, in the copy array example, the spread operator does a shallow-copy. It will copy things like strings, numbers, but not objects or other arrays:

let obj1 = { name: 'test' };
let obj2 = { name: 'test2' };

let array = [obj1, obj2];
let copy = [...array];

array[0] === copy[0] // true

// Or if you modify copy, it will affect the original items in `array` 
copy[0].name = 'Other name';

array[0].name // 'Other name'

This can lead to some weird behaviour, and some tricky bugs. I've had some problems with this in the past, and it took a while to fix. Just a thing to notice!!

But it's not a big deal, and a simple fix!

[Apoorv Tyagi]

Oh this can lead to some problems, yes. I didn't know that. Thanks for sharing this 👍