Display two array data in label swift

Question

i have two String arrays, each array will have same number of elements. Now i want to show arrays data in a label text.

For example, arr1["A","B","C"] and arr2["D","E","F"] we have these two arrays.

Now how we can show data in label like this? label.text = A:D,B:E,C:F. How i can show data in this format in my label?. Array1 element should be first and second should be Array2 element.

Does this answer your question? How to merge two arrays in Swift — Joakim Danielson
– Joakim Danielson, Commented Nov 21, 2019 at 11:18
Your link was also good to get the main idea. @JoakimDanielson — Hamza
– Hamza, Commented Nov 21, 2019 at 11:32

RajeshKumar R · Accepted Answer · 2019-11-21 12:26:06Z

5

Simply use zip(_:_:), map(_:) and joined(separator:) on the arr1 and arr2 to get the expected result, i.e.

let arr1 = ["A","B","C"]
let arr2 = ["D","E","F"]

let text = zip(arr1, arr2).map{ "\($0.0):\($0.1)" }.joined(separator: ",") //A:D,B:E,C:F
label.text = text

edited Nov 21, 2019 at 12:26

RajeshKumar R

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answered Nov 21, 2019 at 11:17

PGDev

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5 Comments

Hamza Over a year ago

Yes this is the right one as i want, thanks alot. Can i know what this map do? . @PGDev

PGDev Over a year ago

map(_:) transforms every element into the required result. Read more about it here - developer.apple.com/documentation/swift/array/3017522-map

Hamza Over a year ago

so can i remove any specific string from array using map? @PGDev

RajeshKumar R Over a year ago

@Hamza For that you can use filter

RajeshKumar R Over a year ago

@Hamza Here you can read about all higher-order functions

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