Ruby | String === Method

Ruby | String =~ Method

Last Updated : 07 Jan, 2020

=~() is a String class method in Ruby which is used for matching purpose. If the given object is a Regexp, then this method will use it as a pattern to match against the given string.

Syntax: str =~ obj Parameters: Here, str is the given string and obj is the object to be matched. Returns: The position of the match starts or nil if there is no match.

Example 1:

Ruby

#ruby 2.3.1 
   
# Ruby program to demonstrate
# the =~ method
   
# Taking a string and
# using the method
puts "ayucd7845ef" =~ /\d/

#returns nil for this
puts "String" =~ 77

Output:

Example 2:

Ruby

#ruby 2.3.1 
   
# Ruby program to demonstrate
# the =~ method
   
# Taking a string and
# using the method
puts "952364127" =~ /\d/

puts "String123" =~ /\d/

Output:

0
6

Ruby | String === Method

K

Kirti_Mangal

Improve

Article Tags :

Similar Reads

Ruby | String * Method

String# * is a String class method in Ruby which is used to returns a new String containing integer copies of the receiver. Here, integer must be greater than or equal to 0. Syntax: str * Integer Parameters: Here, str is the required string and integer is the number of copies. Returns: This method r

Ruby | String + Method

+() is a String class method in Ruby which is used to return a new string that contains the other specified string concatenated to the given string. Syntax: str + other_str Parameters: Here, str and other_str are the strings which are to be concatenated. Returns: Returns the concatenated string. Exa

Ruby | String == method

==() is a String class method in Ruby which is used to check whether str==obj or not. Syntax: str == obj Parameters: Here, str is the given string and obj is the object to be compared. Returns: True or False based on the equality of the two strings. Example 1: Ruby #ruby 2.3.1 # Ruby program to demo

Ruby | String === Method

===() is a String class method in Ruby which is used to check whether str==obj or not. This method is similar to == method of string class. Syntax: str === obj Parameters: Here, str is the given string and obj is the object to be compared. Returns: True or False based on the equality of the two stri

Ruby | String eql? Method

eql? is a String class method in Ruby which is used to check whether the strings are equal or not if they have the same length and content. Syntax: str.eql?(Other_str) Parameters: Here, str and other_str are the strings. Returns: True or false basis on the equality. Example 1: Ruby # Ruby program to

Ruby | String hex Method

hex is a String class method in Ruby which is used to treats the leading characters from the given string as a string of hexadecimal digits (with an optional sign and an optional 0x) and returns the corresponding number. Zero is returned on error. Syntax: str.hex Parameters: Here, str is the given s

Ruby | String chr Method

chr is a String class method in Ruby which is used to return a one-character string at the beginning of the string. Syntax:str.chr Parameters: Here, str is the given string. Returns: A one-character string at the beginning of the string. Example 1: Ruby # Ruby program to demonstrate # the chr method

Ruby | String hash method

hash is a String class method in Ruby which is used to return a hash based on the string's length, content and encoding. Syntax: str.hash Parameters: Here, str is the given string. Returns: A hash based on the string's length, content and encoding. Example 1: Ruby # Ruby program to demonstrate # the

Ruby | String gsub! Method

gsub! is a String class method in Ruby which is used to return a copy of the given string with all occurrences of pattern substituted for the second argument. If no substitutions were performed, then it will return nil. If no block and no replacement is given, an enumerator is returned instead. Synt

Ruby | String chop! Method

chop! is a String class method in Ruby which is used to return a new String with the last character removed. Both characters are removed if the string ends with \r\n, b. It will return nil if the string is empty. Syntax:str.chop!Parameters: Here, str is the given string.Returns: A new string having