How to initialize a Dictionary with structure components in Swift -


i have following structure:

struct song { var songnum: int = 0 var name = "not defined" var lyrics_wo_chords = nsmutableattributedstring() var lyrics_w_chords = nsmutableattributedstring() var favorite = false }

and i'm trying make dictionary var songs = [string: [song]]()

where the string name of songbook , [song] array of structures called song hold individual structure members

i've tried songs["songbook name"] = song.self as? [song] add new key dictionary. otherwise, have no idea how initialize it.

also, when append array of key:

songs["songbook name"]?.append(song( songnum: 1,  name: "name",  lyrics_o_chords: nsmutableattributedstring(string:"no chords"),  lyrics_w_chords: nsmutableattributedstring(string: "with chords"),  favorite:  false))`

the dictionary returned nil

any appreciated, thank you

your value in dictionary array of song (that [song]), need put [ ] around value make array of song:

songs["songbook name"] = [song(     songnum: 1,     name: "name",     lyrics_wo_chords: nsmutableattributedstring(string:"no chords"),     lyrics_w_chords: nsmutableattributedstring(string: "with chords"),     favorite: false) ]

structure , class names should capitalized, use song instead of song when defining structure.


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