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Comment by jagged-chisel | Hacker News Reader

I have never seen anyone argue for a ‘switch’ version.

    switch (v) {
     case: 0,2,4,8,…:
       return EVEN;
     case: 1,3,5,7,…:
       return ODD;
     default:
       return IDK;
    }

Slightly less code to generate.

you forgot the logic to strip the final digit and assign it to v.

processing the whole number is absurd

I think the idea is to fill in the ellipses with even/odd numbers, up to 4B.

You know, to save the performance cost of processing the input as a string, and chomping off all but the last character.

Look at Mr. Rocket Scientist over here...

Converting to decimal is just as absurd.

All you need is the final binary digit, which incidentally is the most optimal codegen, `v & 1`.