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Comment by duped | Hacker News Reader

I mean compare to using arrow functions and it's almost identical

    let decrement = () => set_value.update((value) => value -1);

The difference is that Rust isn't garbage collected and has reference value semantics, which is where the *value -= 1 comes in.

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I like how you skipped the hardest part that requires most Rust knowledge; the `move`

Ok fine, "Rust doesn't have a garbage collector and has reference value semantics and ownership semantics."

My point is that the syntax isn't a problem, it's that Rust has very different semantics from the GC'd languages in the original comment and it all has to do with memory management.

It's funny, I almost noted that arrow functions are a definite oddity of JS that I could see people thrown off by.

> oddity of JS

I can't think on any modern language that lacks some short syntax for lambdas.

Hell, it's very easy to make a point that lacking short syntax for lambdas make a language not modern and unusable for our current standards.

I'm a little confused what you mean by JS lacking a short syntax for lambdas.

let multiply = (a, b) => a * b;

Is this not a lambda?

Parent means that basically every language has lambdas, so it could hardly be an odd thing.

Ohh! Thanks for clarifying

You've missed their point entirely. It was never stated that JS was lacking this, rather than most languages DON'T lack it.

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