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I need to find the shortest code for reversing an array and at the moment I have this:

weirdReverse=a=>a.sort(()=>1)

This is a codewars challenge and the length of this is 29 bytes. I need to have a length <=28 so I need to remove 1 byte and I can't change this part:

weirdReverse=a=>a

And I can't use reverse().

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  • 1
    How is sort order determined, here? Couldn't you just leave out the ()=>1? Commented May 22, 2018 at 22:11
  • Sorry im dumb , i need to reverse it i just look on sort() and i write i need to sort it , description is changed now Commented May 22, 2018 at 22:13
  • 3
    array.reverse() .. am I missing something?? Commented May 22, 2018 at 22:14
  • didnt write it too ... i can't use reverse() Commented May 22, 2018 at 22:15

2 Answers 2

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You can golf one byte off your anonymous arrow function by specifying an unused parameter instead of () to indicate no named parameters, bringing the total down to 28 bytes:

weirdReverse=a=>a.sort(_=>1)
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3 Comments

Bro you are great , i didn't know about that
I just dont understand why i always get -1 when i create a topic , its sad :(
@Mariusz I haven't looked at your other questions, but this one barely qualifies as on-topic, and the answer is not going to be useful to anyone finding this on google, so there's no value-added for Stack Overflow to have this question on their site. I just happen to be an active participant on Programming Puzzles & Code Golf, so I knew the answer to this.
4

You can use a named parameter instead of braces, like so:

weirdReverse=a=>a.sort(b=>1)

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1 Comment

Thanks you both good to know i dont need to use () and i can change it to something different

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