mirror of
https://github.com/aNNiMON/Own-Programming-Language-Tutorial.git
synced 2024-09-20 08:44:20 +03:00
12 lines
407 B
Scala
12 lines
407 B
Scala
use std, functional
|
|
|
|
data = ["apple", "banana", "cherry", "apricot", "coconut"]
|
|
println groupby(data, def(str) = str.substring(0, 1))
|
|
|
|
map = {"abc": 123, "test1": 234, "test2": 345, "test3": 456, "def": 567}
|
|
println groupby(map, def(k, v) = k.startsWith("test"))
|
|
|
|
arr = [1, 2, 3, 4, 1, 2, 3, 1, 2, 3]
|
|
result = groupby(arr, def(v) = v % 2 == 0)
|
|
println "even: " + result[true]
|
|
println "odd: " + result[false] |