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iOS Swift Basics (retired) Collections What is a Dictionary?

Posted by Ross Freeman
Ross Freeman
5,522 Points

How is the order determined for a dictionary?

I know the video says that the order doesn't mean anything for dictionaries in Swift, but what determines the order it prints out?

1 Answer

Dylan Shine
Dylan Shine
17,565 Points

Hi Ross,

That's a really great question. The answer unfortunately is quite complex and I wouldn't do it any justice by typing out what goes into the hashing algorithm but you can find more general information from this Wikipedia page http://en.wikipedia.org/wiki/Hash_table.

Hope that helps,

Dylan

Ross Freeman
Ross Freeman
5,522 Points

I'll take a look at it and see if I could try to understand it. Thanks!