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Regular expressions: Difference between revisions
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$string =~ s/i/u/ig; # would change "I am a string" into "u am a strung"
==[[Ruby]]==
Test
string="I am a string"
puts "Ends with 'string'" if string[/string$/]
puts "Does not start with 'You'" if !string[/^You/]
Substitute
puts string.gsub(/ a /,' another ')
#or
string[/a/]='another'
puts string
Substitute using block
puts(string.gsub(/\bam\b/) do |match|
puts "I found #{match}"
#place "was" instead of the match
"was"
end)
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