November 2016
Intermediate to advanced
480 pages
14h 42m
English
Write a function called siftBeans(fromGroceryList:) that takes a grocery list (as an array of strings) and “sifts out” the beans from the other groceries.
The function should take one argument that has a parameter name called list, and it should return a named tuple of the type (beans: [String], otherGroceries: [String]).
Here is an example of how you should be able to call your function and what the result should be:
let result = siftBeans(fromGroceryList: ["green beans",
"milk",
"black beans",
"pinto beans",
"apples"])
result.beans == ["green beans", "black beans", "pinto beans"] // true
result.otherGroceries == ["milk", "apples"] // true
Hint: You may need to use a function on the String type called hasSuffix(_:) ...
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