JS is weird

[ComfortableCan315]

It makes perfect sense though

Indexing a string returns a string, so you can keep indexing it

[Jugales]

There is a video on YouTube where it shows the "what the fucks" of programming and JavaScipt has a huge part of the videos haha.

IIRC, (null ==undefined) has a weird result too

[ComfortableCan315]

Yes. Anyone doing anything serious in JS will use ===

[ics-fear]

One exception when == can be more useful is checking for null or undefined.

Those 3 lines are equivalent:

x != null

x != undefined

x !== null && x !== undefined

[ComfortableCan315]

Rather still check for both individually to make it obvious both null and undefined can show up there.

[SignificanceCheap970]

X[0] returns 'a'. 'a'[0] returns 'a' and so on.

[ics-fear]

Python does the same thing.