ryancastro
ryancastro
/ test a number in Ruby.rb
Created
July 25, 2013 15:45
— forked from anonymous/test a number in Ruby
Test to see if a number is a number in Ruby. Useful because:
"I am a string".to_i returns 0, which is an an Integer.... so my string will test positive for a number.
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| def isInt?(number) | |
| true if Integer(number) rescue false | |
| end | |
| isInt?("13") | |
| result = true if Integer("12") rescue false # true | |
| result = true if Integer("test") rescue false #false | |
| result = true if Float("test") rescue false #false | |
| result = true if Float(13.2) rescue false #true |