SubArray selection in swift

Question

I want to do a sub-array selection Python-like (ArraySlice) in Swift.

This is working for me, but I know it's not nice. To make it work I used .suffix embedded to .prefix method. I'm wondering if there's an easier or cleaner method to accomplish this:

let startIndex = 3
let endIndex = 7

let newPoints = Array(points.suffix(points.count - startIndex).prefix(endIndex - startIndex + 1))

burnsi · Accepted Answer · 2023-05-11 10:47:13Z

0

You can try Array Slice

Example implementation:

startIndex = 3
endIndex = 7

let slice = points[startindex...endindex]

But you should read the documentation on this. ArraySlice is a look into the array and keeping it alive for a long time is discouraged.

edited May 11, 2023 at 10:47

answered May 10, 2023 at 21:50

burnsi

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1 Comment

ccmsd18 Over a year ago

Oh I was only looking into the Array's properties/methods.. didn't know it had that type as well. That'll work great. Thanks!

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