Using Underscore.js from the Node.js REPL

test.js

/*
	Per <http://stackoverflow.com/questions/5691901/using-the-underscore-module-with-node-js>,
	from the Node.js REPL, use two underscores (__) instead of a single underscore (_)
	because Node uses _ for the last return value.
	
	Note that if your program is in a file, you can still use a single underscore (_).
*/

var __ = require("underscore");
__.each([1, 2, 3], function(e) { console.log(e); });