See if you can guess why this is, without reading the replies. Bonkers
Quote Tweet
Ha... sort's behavior is worse than I remembered. It doesn't even sort naked numbers properly. Utterly baffling.
> [2, 10].sort()
[10, 2]
Show this thread
9
2
3
Conversation
so in case you're wondering why JS VMs have been at the forefront of the development of new float->string algorithms for the past decade.... yeah.
1
5
They added Map as a proper key-value data structure so it's a good idea to ban using objects as map data structure now, just like banning any usage of `var` (using only let/const) with "use strict" to prevent implicit usage of that nonsense broken form of scoping with hoisting.
Except it's not a proper key-value data structure, arrays and objects used as keys in one do the lookup via the use of the `==` operator. So it might work, until it doesn't because you got a key in from a different path and then nothing works.
1
I don't think it's reasonable to blame Map for objects implementing equality as reference equality. It would be worse if it deviated from the standard definition of equality in the language. Arrays and objects are what need to be fixed, not Map using `===` (it doesn't use `==`).
1
1
Show replies