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Ruby | String delete! Method

  • Last Updated : 13 Dec, 2019

delete! is a String class method in Ruby which is used to perform a delete operation, returning the given string, or nil if the given string was not modified.

Syntax: str.delete!(parameter_list)

Parameters: Here, str is the given string and parameter_list are the specified characters.

Returns: nil if the string not modified.

Example 1:






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

Output:

Str Cout

Example 2:




# Ruby program to demonstrate 
# the delete! method 
       
# Taking a string and 
# using the method
str = "String Counting"
puts str.delete! "ing", "^n"
  
str2 = "Ruby Method"
  
puts str2.delete! "ZXC"

Output:

Strn Countn

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