Fuzion • Idioms • Idiom # 288: Check if set contains a value

Idiom # 288: Check if set contains a value

Code

b := e ∈ x

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b := e ∈ x
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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What are effects?

Runnable Example

ex288 is

    x := container.set_of_ordered [1,2,3,4,5]
    e := 0
    e2 := 1

  # running the example using 'contains'

    b := x.contains e
    if b
      say "the element e=$e exist in the set x=$x"
    else
      say "the element e=$e Does not exist in the set x=$x"

    say "-------------------------------------------------------"

  # running the example using '∈'

    b2 := e2 ∈ x
    if b2
      say "the element e=$e exist in the set x=$x"
    else
      say "the element e=$e Does not exist in the set x=$x"

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ex288 is
    x := container.set_of_ordered [1,2,3,4,5]
    e := 0
    e2 := 1
  # running the example using 'contains'
    b := x.contains e
    if b
      say "the element e=$e exist in the set x=$x"
    else
      say "the element e=$e Does not exist in the set x=$x"
    say "-------------------------------------------------------"
  # running the example using '∈'
    b2 := e2 ∈ x
    if b2
      say "the element e=$e exist in the set x=$x"
    else
      say "the element e=$e Does not exist in the set x=$x"
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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What are effects?

last changed: 2025-05-13

next: Idiom # 289: Concatenate two strings