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Ruby | String count() Method

  • Last Updated : 13 Dec, 2019
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count is a String class method in Ruby. In this method each parameter defines a set of characters to which is to be counted. The intersection of these sets defines the characters to count in the given string. Any other string which starts with a caret ^ is negated.

Syntax:str.count(parameter_list)

Parameters: Here, str is the given string.

Returns: The numbers of the characters.

Example 1:






# Ruby program to demonstrate 
# the count method 
       
# Taking a string and 
# using the method
str = "String Counting"
puts str.count "ing"

Output:

7

Example 2:




# Ruby program to demonstrate 
# the count method 
       
# Taking a string and 
# using the method
str = "String Counting"
puts str.count "^ing"
  
str2 = "Ruby Method\\r\\n"
  
puts str.count "\\"

Output:

8
0
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