Adam Fields (work stuff) - How to swap two variables without using a third (ruby edition)

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How to swap two variables without using a third (ruby edition)

Method 1:

> string1 = "sssss"
 => "sssss" 
> string2 = "ttttt"
 => "ttttt" 
> string1, string2 = string2, string1
 => ["ttttt", "sssss"] 
> string1
 => "ttttt" 
> string2
 => "sssss"

Method 2:

> string1 = "sssss"
 => "sssss" 
> string2 = "ttttt"
 => "ttttt" 
> string1 = [string1, string2]
 => ["sssss", "ttttt"] 
> string2 = string1[0]
 => "sssss" 
> string1 = string1[1]
 => "ttttt" 
> string1
 => "ttttt" 
> string2
 => "sssss"

It’s probably worth noting that I’ve never once needed to do this in 15 years of programming for a living.

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