Hel;p with Tip Calculator
in [Ruby]
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From: Hd Pwnz0r on 8 Aug 2010 11:46 puts "What is the total?" input = gets.chomp.to_i puts "What percent do you want to tip?" input2 = gets.chomp.to_i percent = 100 tip = input2 * input * 0.01 puts "You should tip $#{tip}" This is a tip calculator. I want it to work if the person enters $45 or 15%. Right now, it would only return 0 because they are invalid numbers. It would only work with an input of 15 or 45. I have really no clue how to do that. -- Posted via http://www.ruby-forum.com/.
From: Andrei Beliankou on 8 Aug 2010 11:59 On Mon, 9 Aug 2010 00:46:29 +0900 Hd Pwnz0r <human.dictionary(a)rocketmail.com> wrote: > puts "What is the total?" > input = gets.chomp.to_i > puts "What percent do you want to tip?" > input2 = gets.chomp.to_i > percent = 100 > tip = input2 * input * 0.01 > puts "You should tip $#{tip}" > > This is a tip calculator. I want it to work if the person enters $45 > or 15%. > > Right now, it would only return 0 because they are invalid numbers. It > would only work with an input of 15 or 45. I have really no clue how > to do that. Use '45 %'.sub(/%/, '').strip '14 $'.sub(/[$]/, '').strip for that. "strip" can remove unwanted trailing and leading blanks. "sub" substitutes the charachters in the RE with an empty string removing them. Regards, Andrei
From: Hassan Schroeder on 10 Aug 2010 09:58 On Tue, Aug 10, 2010 at 6:51 AM, Hd Pwnz0r <human.dictionary(a)rocketmail.com> wrote: >> input_string.gsub(/\D/, '') > tax.rb:6:in `<main>': undefined method `gsub' for 0:Fixnum > (NoMethodError) > > When using that code. Yes, it works on *strings* -- that was the problem you posed. If you already have a *number*, it's not going to include any symbols like "$" or "%" in the first place. -- Hassan Schroeder ------------------------ hassan.schroeder(a)gmail.com twitter: @hassan
From: jason joo on 10 Aug 2010 21:38 [Note: parts of this message were removed to make it a legal post.] or just >> input_string.to_s.gsub(/\D/,'') for number format permitted 2010/8/10 Hassan Schroeder <hassan.schroeder(a)gmail.com> > On Tue, Aug 10, 2010 at 6:51 AM, Hd Pwnz0r > <human.dictionary(a)rocketmail.com> wrote: > > >> input_string.gsub(/\D/, '') > > > tax.rb:6:in `<main>': undefined method `gsub' for 0:Fixnum > > (NoMethodError) > > > > When using that code. > > Yes, it works on *strings* -- that was the problem you posed. If you > already have a *number*, it's not going to include any symbols like > "$" or "%" in the first place. > > -- > Hassan Schroeder ------------------------ hassan.schroeder(a)gmail.com > twitter: @hassan > >
From: Hassan Schroeder on 11 Aug 2010 00:18
On Tue, Aug 10, 2010 at 6:38 PM, jason joo <jasonjoo.god(a)gmail.com> wrote: > or just >>> input_string.to_s.gsub(/\D/,'') > for number format permitted Depending on what your actual numeric use case is :-) $ irb >> input = 9 => 9 >> input.to_s.gsub(/\D/,'') => "9" >> input = 9.095 => 9.095 >> input.to_s.gsub(/\D/,'') => "9095" >> -- Hassan Schroeder ------------------------ hassan.schroeder(a)gmail.com twitter: @hassan |