Ruby | Enumerable any? function

Last Updated : 05 Dec, 2019

The any?() of enumerable is an inbuilt method in Ruby returns a boolean value if any of the object in the enumerable satisfies the given condition, else it returns false.

Syntax enu.any? { |obj| block } or enu.any?(pattern)

Parameters: The function takes two types of parameters, one is the object and the block, while the other is the pattern. In case nothing is passed, it assumes to be default object and block which returns true if any of the objects are false or nil.

Return Value: It returns a boolean value.

Example 1:

# Ruby program for any? method in Enumerable 
    
# Initialize an enumerable 
enu1 = [10, 19, 18]    
    
# checks if any numbers are greater  
# than 13 or not  
res1 = enu1.any? { |num| num>13}  
  
# prints the result  
puts res1  
  
   
res2 = enu1.any? { |num| num>=20}  
  
# prints the result  
puts res2  

Output:

true
false

Example 2:

# Ruby program for any? method in Enumerable 
    
# Initialize an enumerable 
enu1 = [10, 19, 20]    
    
# Checks 
res1 = enu1.any?(Numeric) 
  
# prints the result  
puts res1  
  
# Initialize 
enu2 = [nil, 10] 
  
# Checks  
res2 = enu2.any?  
  
# prints the result  
puts res2  

Output:

true
true

Ruby | Enumerable all? function

gopaldave

News

Improve

Article Tags :

Similar Reads

Ruby | Enumerable any? function

The any?() of enumerable is an inbuilt method in Ruby returns a boolean value if any of the object in the enumerable satisfies the given condition, else it returns false. Syntax enu.any? { |obj| block } or enu.any?(pattern) Parameters: The function takes two types of parameters, one is the object an

Ruby | Enumerable all? function

The all?() of enumerable is an inbuilt method in Ruby returns a boolean value true if all the objects in the enumerable satisfies the given condition, else it returns false. If a pattern is given, it compares with the pattern, and returns true if all of them are equal to the given pattern, else it r

Ruby | Enumerable to_a() function

The to_a() of enumerable is an inbuilt method in Ruby returns an array containing all the items of the enumerable. Syntax: enu.to_a() Parameters: The function does not accepts any parameter. Return Value: It returns an array. Example #1: # Ruby program for to_a method in Enumerable # Initialize enu

Ruby | Enumerable count() function

The count() of enumerable is an inbuilt method in Ruby returns the number of elements in the enumerable, or the number of elements that are equal to a given element, or the number of items which satisfies the condition in the given block. Syntax: block.count { |obj| block } or block.count(element) P

Ruby | Enumerable cycle() function

The cycle() of enumerable is an inbuilt method in Ruby calls block for each element of enum repeatedly the given numbers times or forever if none or nil is given. If a negative numbers is given or the collection is empty, it does nothing. It returns nil if the loop has finished without getting inter

Ruby | Enumerable min_by() function

The min_by() of enumerable is an inbuilt method in Ruby returns an array of minimum elements which satisfies the condition of the given block. It returns an enumerator when no block is given. Syntax: enu.min_by(n) { |obj| block } Parameters: The function takes two parameters n and block. N signifies

Ruby | Enumerable max_by() function

The max_by() of enumerable is an inbuilt method in Ruby returns an array of maximum elements which satisfies the condition of the given block. It returns an enumerator when no block is given. Syntax: enu.max_by(n) {|obj| block} Parameters: The function takes two parameters n and block. N signifies t

Ruby | Enumerable drop() function

The drop() of enumerable is an inbuilt method in Ruby returns the rest elements in the enumerator after dropping the first N elements. Syntax: block.drop(N) Parameters: The function takes N which signifies the number of elements to be dropped. Return Value: It returns the rest elements after droppin

Ruby | Enumerable entries() function

The entries() of enumerable is an inbuilt method in Ruby returns the items in the enumerable. Syntax: enu.entries Parameters: The function does not takes any parameter. Return Value: It returns the items in the enum. Example 1: # Ruby program for entries method in Enumerable # Initialize enu = [7, 9

Ruby | Enumerable sort_by() function

The sort_by() of enumerable is an inbuilt method in Ruby sorts enum using a set of keys generated by mapping the values in enum through the given block. The returned result is not guaranteed to be stable, it is unstable when the comparison is equal. It returns an enumerator when no block is given. S

Ruby | Enumerable one? function

The one?() of enumerable is an inbuilt method in Ruby returns a boolean value true if exactly one of the object in the enumerable satisfies the given condition, else it returns false. If a pattern is given, it returns true if any one object matches with exactly pattern. Syntax enu.one? { |obj| block

Ruby | Enumerable map() function

The map() of enumerable is an inbuilt method in Ruby returns a new array with the results of running block once for every element in enum. The object is repeated every time for each enum. In case no object is given, it return nil for each enum. Syntax: (r1..r2).map { |obj| block } Parameters: The fu

Ruby | Enumerable sum() function

The sum() of enumerable is an inbuilt method in Ruby returns the sum of all the elements in the enumerable. If a block is given, the block is applied to the enumerable, then the sum is computed. If the enumerable is empty, it returns init. Syntax: enu.sum { |obj| block } Parameters: The function acc

Ruby | Enumerable min() function

The min() of enumerable is an inbuilt method in Ruby returns the minimum elements or an array containing the minimum N elements in the enumerable. When no block is given, it assumes all elements to be self comparable, but when the block is given then it is compared using . Syntax: enu.min(n) { |a, b

Ruby | Enumerable max() function

The max() of enumerable is an inbuilt method in Ruby returns the maximum elements or an array containing the maximum N elements in the enumerable. When no block is given, it assumes all elements to be self comparable, but when the block is given then it is compared using . Syntax: enu.max(n) { |a, b

Ruby | Enumerable find_all() function

The find_all() of enumerable is an inbuilt method in Ruby returns the items in the enumerable which satisfies the given condition in the block. It returns an enumerator if no block is given. Syntax: enu.find_all { |obj| block } Parameters: The function takes a block whose condition is used to find t

Ruby | Enumerable detect() function

The detect() of enumerable is an inbuilt method in Ruby returns the first element which satisfies the given condition in the block. If there is no block, then it returns the enumerator itself. Syntax: block.detect { |obj| block } Parameters: The function takes the block according to which the first

Ruby | Enumerable group_by() function

The group_by() of enumerable is an inbuilt method in Ruby returns an hash where the groups are collectively kept as the result of the block after grouping them. In case no block is given, then an enumerator is returned. Syntax: enu.group_by { |obj| block } Parameters: The function takes an optional

Ruby | Enumerable grep() function

The grep() of enumerable is an inbuilt method in Ruby returns an array of elements which contain every (element == pattern), of all the elements in the pattern. If the optional block is not given, then it returns an array containing the elements in that pattern. Syntax: enu.grep(pattern) { |obj| blo

翻译：