What is the use of Underscore variable in REPL?

1.	What is the use of Underscore variable in REPL?
Answer» Use _ to get the last result. C:\Nodejs_WorkSpace>node> var x = 10undefined> var y = 20undefined> x + y30> var sum = _undefined> console.log(sum)30undefined>

Answer»

Use _ to get the last result.

C:\Nodejs_WorkSpace>node> var x = 10undefined> var y = 20undefined> x + y30> var sum = _undefined> console.log(sum)30undefined>

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