I have an array:
var array = ["1|First", "2|Second", "3|Third"]
How I can cut off "1|", "2|", "3|"?
The result should look like this:
println(newarray) //["First", "Second", "Third"]
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1 Answer
You can use (assuming the strings will contain the "|" character):
let newarray = array.map { $0.componentsSeparatedByString("|")[1] }
As @Grimxn pointed out, if you cannot assume that the "|" character will always be in the strings, use:
let newarray = array.map { $0.componentsSeparatedByString("|").last! }
or
let newarray2 = array.map { $0.substringFromIndex(advance(find($0, "|")!, 1)) }
result2 could be a little bit faster, because it doesn't create an intermediate array from componentsSeparatedByString.
or if you want to modify the original array:
for index in 0..<array.count {
array[index] = array[index].substringFromIndex(advance(find(array[index], "|")!, 1))
}
4 Comments
Pham Hoan
Swift 1.2 syntax:
map(array) { $0.componentsSeparatedByString("|")[1] } The answer is swift 2.0
Dániel Nagy
actually, mine as well Swift 1.2
Pham Hoan
ops, my mistake. Swift 1.2 has
map() as global function and array function as well
Grimxn
This solution will crash if the "|" doesn't exist. Try it with
var array = ["1|First", "2|Second", "3|Third", "Fourth"]. Consider changing the solution to let newarray = array.map { $0.componentsSeparatedByString("|").last! }