Ruby | StringScanner check function
Last Updated :
12 Dec, 2019
StringScanner#check() : check() is a StringScanner class method which returns the value that scan would return, without advancing the scan pointer
Syntax: StringScanner.check()
Parameter: StringScanner values
Return: the value that scan would return, without advancing the scan pointer
Example #1 :
require 'strscan'
c = StringScanner. new ( "Fri Dec 12 1975 14:39" )
puts "String Scanner check form : #{c.check /Fri/}\n\n"
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Output :
String Scanner check form : Fri
Example #2 :
require 'strscan'
c = StringScanner. new ( "hellogeeks" )
puts "String Scanner check form : #{c.check /hel/}\n\n"
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Output :
String Scanner check form : hel
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