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iOS

Posted by steven maes
steven maes
2,580 Points

getting info from a dictionary in an array (swift basic)

hello everybody,

i'm learning swift programming from scratch and as a little exercise i was playing with the arrays and dictionaries a bit.

i created 3 dictionaries song1 , song2, song3 i created an array songs with has the dictionaries song1, song2, song3

i can get the string from the array by the following command:

songs[0]

now when i try to get the info from a key in one of the dictionaries with the array index it gives an error:

songs[0["artist"]]

how can i solve this?

full code:

let song1 = ["title": "i don't know much","artist": "aaron neville","album": "love at first sight"]

let song2 = ["title": "all of me","artist": "john legend","album": "legends"]

let song3 = ["title": "afsheid nemen bestaat niet","artist": "marco borsato","album": "marco!"]

let songs = [song1,song2,song3]

songs[0["artist"]]

2 Answers

Stephen McMillan
.a{fill-rule:evenodd;}techdegree seal-36
Stephen McMillan
iOS Development with Swift Techdegree Graduate 33,994 Points

First, you need to close the brackets for accessing the array before you open the brackets to access the dictionary. Also note that you didn't assign the value you retreived from the array and dictionary above to a const/variable. This should work for you.

let songArtist = songs[1]["artist"]
println(songArtist)

Hope it helped. :)

steven maes
steven maes
2,580 Points
steven maes
steven maes
2,580 Points

this solves it!

ty very much for the quick solution stephen