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Ruby | Enumerable reject() function

  • Last Updated : 05 Dec, 2019

The reject() of enumerable is an inbuilt method in Ruby returns the items in the enumerable which does not satisfies the given condition in the block. It returns an enumerator if no block is given.

Syntax: enu.reject { |obj| block }

Parameters: The function takes a block whose condition is used to find the elements.

Return Value: It returns the items in the enum which does not satisfies the condition in the block. It returns an enumerator if no block is given.

Example #1:






# Ruby program for reject method in Enumerable
  
# Initialize 
enu = (1..10)
  
# Prints
enu.reject { |obj| obj % 2 == 1}

Output:

[2, 4, 6, 8, 10]

Example #2:




# Ruby program for reject method in Enumerable
  
# Initialize 
enu = [1, 7, 10, 11]
  
# Prints
enu.reject

Output:

Enumerator: [1, 7, 10, 11]:reject
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