1.

What Is The Use Of Underscore Variable In Repl?

Answer»

USE _ to GET the last result.
C:Nodejs_WorkSpace>NODE
> var X = 10
UNDEFINED
> var y = 20
undefined
> x + y
30
> var sum = _
undefined
> console.log(sum)
30
undefined
>

Use _ to get the last result.
C:Nodejs_WorkSpace>node
> var x = 10
undefined
> var y = 20
undefined
> x + y
30
> var sum = _
undefined
> console.log(sum)
30
undefined
>


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