Fuzion • Idioms • Idiom # 222: Find first index of an element in list

Idiom # 222: Find first index of an element in list

Code

i := (items.index_of x).get -1

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i := (items.index_of x).get -1
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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What are effects?

Running Example

ex222 is

  x0 := 5
  items := [1,2,3,4,5,6,7]

  i0 := (items.index_of x0).or_else -1

  say "found $x0 at index $i0"

  x1 := 55

  i1 := (items.index_of x1).or_else -1

  say "found $x1 at index $i1"

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ex222 is
  x0 := 5
  items := [1,2,3,4,5,6,7]
  i0 := (items.index_of x0).or_else -1
  say "found $x0 at index $i0"
  x1 := 55
  i1 := (items.index_of x1).or_else -1
  say "found $x1 at index $i1"
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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What are effects?

last changed: 2024-07-01

next: Idiom # 223: for else loop