Newbie Question

ruby-talk
1

How do I turn the string "4.5" into the number 4.5 so I can do
arithmetic on it?

2

lalawawa wrote:

How do I turn the string "4.5" into the number 4.5 so I can do
arithmetic on it?

irb(main):017:0> "4.5".to_f
=> 4.5

···

--
Kind Regards,
Rajinder Yadav

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3

Thanks Rajinder, that did it!

···

On Dec 25, 10:51 am, Rajinder Yadav <devguy...@gmail.com> wrote:

lalawawa wrote:
> How do I turn the string "4.5" into the number 4.5 so I can do
> arithmetic on it?

irb(main):017:0> "4.5".to_f
=> 4.5

--
Kind Regards,
Rajinder Yadav

http://DevMentor.org

Do Good! - Share Freely

4

Or if you want "4.5" to convert to a Float but "4.5q" to raise an
error/exception:

Float("4.5") #=> 4.5
Float("4.5q") #=> ArgumentError "invalid value for Float"

···

On Fri, Dec 25, 2009 at 3:51 PM, Rajinder Yadav <devguy.ca@gmail.com> wrote:

lalawawa wrote:

How do I turn the string "4.5" into the number 4.5 so I can do
arithmetic on it?

irb(main):017:0> "4.5".to_f
=> 4.5