I am new to Swift and I am trying to copy one array to another.
What I am trying to do is copy the content of Array1 to Array2. But the Array2 content should have contents from a particular index. For example:
Array1 have 100 elements ie. index from 0 to 99. In Array2 I want to copy say, elements from index 25 to last element(ie. 99).
How can I do it. I try searching the problem but did not get the solution.
Please help. Thanks in advance.
If you have this array:
var x = [1, 2, 3, 4, 5]
and you want to obtain a copy from the 3rd element up to the end:
var y = x[2..<x.count]
y will contain [3, 4, 5]
Note that arrays are value types, so they are copied by value - every time you assign an array to another variable (or pass to a function), a copy of it is actually assigned/passed. So you don't have to do anything more to obtain a copy.
var index = 2; var y = x[index..<x.count]You can use Range subscription like this:
let array = [1,2,3,4, .....]
let sliced = array[25...99]
Note that, type of sliced here is Slice<Int>, it has almost the same interface as Array, so you can use that as Array as is.
If you do want real Array, do Array(array[25...99])
