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Ruby | Array take_while() function

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  • Last Updated : 06 Dec, 2019
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Array#take_while() : take_while() is a Array class method which returns elements to the block until the block returns nil or false.

Syntax: Array.take_while()

Parameter: Array

Return: elements to the block until the block returns nil or false.

Example #1 :




# Ruby code for take_while() method
  
# declaring array
a = [18, 22, 33, 3, 5, 6]
  
# declaring array
b = [1, 4, 1, 1, 88, 9]
  
# declaring array
c = [18, 22, 3, 3, 50, 6]
  
# take_while
puts "take_while method : #{a.take_while {|num| num > 10 }}\n\n"
  
# take_while
puts "take_while method : #{b.take_while {|x| x.odd? }}\n\n"


Output :

take_while method : [18, 22, 33]

take_while method : [1]

Example #2 :




# Ruby code for take_while() method
  
# declaring array
a = [18, 22, 33, 3, 5, 6]
  
# declaring array
b = [1, 4, 1, 1, 88, 9]
  
# declaring array
c = [18, 22, 3, 3, 53, 6]
  
# take_while
puts "take_while method : #{c.take_while {|num| num > 10 }}\n\n"
  
# take_while
puts "take_while method : #{c.take_while {|num| num.even? }}\n\n"


Output :

take_while method : [18, 22]

take_while method : [18, 22]

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