What's the simplest way of changing a negative number to positive with ruby?
ie. Change "-300" to "300"
+8
A:
Using abs will return the absolute value of a number
-300.abs # 300
300.abs # 300
Yacoby
2010-03-19 22:39:25
my answer is just for negative numbers, if you need to always have the absolute value then this is definitely the better way.
Brandon Bodnár
2010-03-19 22:41:21
Yacoby, perfect. Just what I needed.
Shpigford
2010-03-19 22:42:40
+2
A:
Put a negative sign in front of it.
>> --300
=> 300
>> x = -300
=> -300
>> -x
=> 300
Brandon Bodnár
2010-03-19 22:40:19
Just note that if the number is already positive, this will make it negative.
musicfreak
2010-03-19 22:40:51