Just a single line variable swap in ruby
x,y=y,xExample:
irb>> x = "Fun"
=> "Fun"
irb>> y = "Rails"
=> "Rails"
irb>> x,y = y,x
=> ["Rails", "Fun"]
irb>> p x
"Rails"
=> nil
>> p y
"Fun"
Variable assignments in Ruby
we can do multiple assignments in a single line.irb>> a,b,c,d = 1,2,3,4
=> [1, 2, 3, 4]
here is interpretation of above line
irb>> p "a => #{a} b => #{b} c => #{c} d => #{d}"
"a => 1 b => 2 c => 3 d => 4"
Multiple assignments in ruby
a = b = c = d = 12
This means a,b,c,d variables has value 12
