Ruby: Change negative number to positive number?
What's the simplest way of changing a negative number to positive with ruby?
ie. Change "-300" to "300"
Using abs will return the absolute value of a number
-300.abs # 300
300.abs # 300
Put a negative sign in front of it.
>> --300
=> 300
>> x = -300
=> -300
>> -x
=> 300