Underscore.JS chunk方法

_.chunk(array, length)

var _ = require('underscore');

var list1 = [ 'Sam', 'Joe','Julie' ]
var list2 = [ 1, 2, 3, 4, 5, 6 ]

//Example 1: create arrays using list1
result = _.chunk(_.shuffle(list1), 2);
console.log(result)

//Example 2: create arrays using list2
result = _.chunk(list2, 2);
console.log(result)

>node tester.js

[ [ 'Julie', 'Joe' ], [ 'Sam' ] ]
[ [ 1, 2 ], [ 3, 4 ], [ 5, 6 ] ]