Ruby | StringScanner rest_size function

StringScanner#rest_size() : rest_size() is a StringScanner class method which returns the size of the bytes after the string position.

Syntax: StringScanner.rest_size()

Parameter: StringScanner values

Return: the size of the bytes after the string position.

Example #1 :

# Ruby code for StringScanner.rest_size() method 
  
# loading StringScanner 
require 'strscan'
  
# declaring StringScanner  
c = StringScanner.new("Mon Sep 12 2018 14:39") 
  
# rest_size() method 
c.pos = 2
puts "String Scanner rest_size form : #{c.rest_size}\n\n"
  
# rest_size() method 
c.pos = 7
puts "String Scanner rest_size form : #{c.rest_size}\n\n"

Output :

String Scanner rest_size form : 19

String Scanner rest_size form : 14

Example #2 :

# Ruby code for StringScanner.rest_size() method 
  
# loading StringScanner 
require 'strscan'
  
# declaring StringScanner  
c = StringScanner.new("hellogeeks") 
  
# rest_size() method 
c.pos = 2
puts "String Scanner rest_size form : #{c.rest_size}\n\n"
  
# rest_size() method 
c.pos = 7
puts "String Scanner rest_size form : #{c.rest_size}\n\n"

Output :

String Scanner rest_size form : 8

String Scanner rest_size form : 3

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