Mercurial > repos > other > SevenLanguagesInSevenWeeks
changeset 33:4e1a659f8383
Work through how Io does lists and maps
| author | IBBoard <dev@ibboard.co.uk> |
|---|---|
| date | Wed, 06 Sep 2017 19:06:46 +0100 |
| parents | 4d3769ac447c |
| children | 3d41d9d72cc9 |
| files | 2-Io/day1-collections.io |
| diffstat | 1 files changed, 33 insertions(+), 0 deletions(-) [+] |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/2-Io/day1-collections.io Wed Sep 06 19:06:46 2017 +0100 @@ -0,0 +1,33 @@ +# Io has Lists and Maps as collections +toDos := list("Task 1", "Task 2") +toDos size println +# Calling a method with arguments is like most other languages +toDos append("Task 3") +toDos size println + +# Lists are like arrays and are zero-indexed +list(1, 2, 3) at(1) println +# Lists can act like stacks and queues +list(1, 2, 3) prepend(0) println +list(1, 2, 3) append(4) println +list(1, 2, 3) push(4) println +list(1, 2, 3) pop println +list() isEmpty println +# Lists can also do some basic maths +list(1, 2, 3, 4) average println +list(1, 2, 3, 4) sum println + +# Map is a prototype to be cloned +rincewind := Map clone +rincewind atPut("home", "Unseen University, Ankh Morpork") +rincewind at("home") println +rincewind atPut("job", "Wizzard") +rincewind at("job") println + +# Maps can be turned in to objects with slots and lists (of (two-element) lists) +rincewind asObject println +rincewind asObject home println +rincewind asList println + +# You can also pull keys from a map +rincewind keys println