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ifn't (programming.dev)
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[-] olafurp@lemmy.world 26 points 11 months ago

I'd take a not or "if not" operator tbh.

[-] Lmaydev@programming.dev 9 points 11 months ago* (last edited 11 months ago)

It has a not keyword it's used for pattern matching.

if (x is not null)
[-] olafurp@lemmy.world 3 points 11 months ago
[-] Lmaydev@programming.dev 2 points 11 months ago

Pattern matching is different.

[-] olafurp@lemmy.world 2 points 11 months ago

Yeah, I just said it since you used it with null. I used it a lot for enums

[-] Lmaydev@programming.dev 1 points 11 months ago* (last edited 11 months ago)

The type matching is the most common thing I use it with. Combined with inline variables.

if (x is string { Length: 5} s)
{
    // do stuff with s
}

And switch expressions.

As a side note inline variables are amazing haha

[-] Patches@sh.itjust.works 2 points 11 months ago

Stuff can be two things

[-] Appoxo@lemmy.dbzer0.com 3 points 11 months ago

ifnt instead of ifn't

this post was submitted on 18 Jan 2024
763 points (98.6% liked)

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