undefined | Better HN

0 pointsTouche10y ago0 comments

   var a = 1;
   a = 2;

   window.someGlobal = 'foo';

0 comments

ksikka10y ago

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Refe...

ToucheOP10y ago

    const a = {b: "foo"};
    a.b = "bar";

pyrophane10y ago

Yea, const provides immutability with respect to assignment, but without immutable objects and collections, it isn't going to get you all the way.

dangoor10y ago

    const a = icepick.freeze({b: "foo"});

Granted, that's not as elegant as built-in support but that is literally what I'm doing at the moment when I want immutability.

1 more reply

omtanks10y ago

Microsoft ruined C# by adding var. var is not your friend. Dynamic typing is not your friend and static languages pretending to be dynamic is akin to evil.

dllthomas10y ago

Implicit typing is not dynamic typing, or even "pretending to be dynamic". It's also, I think, off topic - as the example seemed to be talking about mutability in JS, with no C# for miles.

jsprogrammer10y ago

A functional language can allow mutations (see Haskell, LISP, etc.).

All a functional language really needs is first class functions. JS has had that since the very beginning.

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