Ruby | String delete! Method

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