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Fuzion
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Idioms
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Idiom # 225: Declare and use an optional argument
Idiom # 225: Declare and use an optional argument
See
programming-idioms.org
:
Code
f(x option<T>) => x ? t T => say "x is present $t" | nil => say "x is not present"
What are effects?
Running Example
ex225 is f(T type, x option T) => x ? t T => say "x is present $t" | nil => say "x is not present" f 42 f "some text" f String nil # the following does not work yet, see https://github.com/tokiwa-software/fuzion/issues/121 # f nil # f nil nil f -1⁄12 f "Die Würde des Menschen ist unantastbar.".split
What are effects?
next: Idiom # 226: Delete last element from list
