Prevent Node.js repl from printing output

Question

If the result of some javascript calculation is an array of 10,000 elements, the Node.js repl prints this out. How do I prevent it from doing so?

Thanks

Answer 1

Why don't you just append ; null; to your expression?

As in

new Array(10000); null;

which prints

null

or even shorter, use ;0;

Answer 2

Assign the result to a variable declared with var. var statements always return undefined.

> new Array(10)
[ , , , , , , , , ,  ]

> var a = new Array(10)
undefined