Ruby | StringScanner exist? function
StringScanner#exist?() : exist?() is a StringScanner class method which returns the value of pointer if the pattern exists.
Syntax: StringScanner.exist?()
Parameter: StringScanner values
Return: the value of pointer – if the pattern exists otherwise return nil.
Example #1 :
Ruby
require 'strscan'
c = StringScanner. new ( "Fri Dec 12 2018 14:39" )
puts "String Scanner exist? form : #{c.exist? /2018/}\n\n"
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Output :
String Scanner exist? form : 15
Example #2 :
Ruby
require 'strscan'
c = StringScanner. new ( "hellogeeks" )
puts "String Scanner exist? form : #{c.exist? /ge/}\n\n"
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Output :
String Scanner exist? form : 7
Last Updated :
30 Sep, 2021
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