00eb17014a
While doing this, I also discovered that there is also a reference to lists in numbers, but that might a bit easier for someone to grasp, given the hint that the koan gives, and the output they see when they run it.
46 lines
1.1 KiB
Elixir
46 lines
1.1 KiB
Elixir
defmodule Strings do
|
|
use Koans
|
|
|
|
@intro "Strings"
|
|
|
|
koan "Strings are there to represent text" do
|
|
assert "hello" == ___
|
|
end
|
|
|
|
koan "Values may be inserted into strings by interpolation" do
|
|
assert "1 + 1 = #{1 + 1}" == ___
|
|
end
|
|
|
|
koan "They can be put together" do
|
|
assert "hello world" == ___ <> "world"
|
|
end
|
|
|
|
koan "Or pulled apart into a list when needed" do
|
|
assert ["hello", "world"] == String.split(___, " ")
|
|
end
|
|
|
|
koan "Be careful, a message may be altered" do
|
|
assert String.replace("An awful day", "awful", "incredible") == ___
|
|
end
|
|
|
|
koan "But strings never lie about themselves" do
|
|
assert true == String.contains?("An incredible day", ___)
|
|
end
|
|
|
|
koan "Sometimes you want just the opposite of what is given" do
|
|
assert ___ == String.reverse("ananab")
|
|
end
|
|
|
|
koan "Other times a little cleaning is in order" do
|
|
assert String.trim(" \n banana\n ") == ___
|
|
end
|
|
|
|
koan "Repetition is the mother of learning" do
|
|
assert String.duplicate("String", 3) == ___
|
|
end
|
|
|
|
koan "Strings can be louder when necessary" do
|
|
assert String.upcase("listen") == ___
|
|
end
|
|
end
|