Equivalent of Ruby Enumerable#each_slice in Javascript?

javascript, underscore.js

Solution

I would modify Brandan's answer slightly to fit better within the environment of JavaScript plus underscore.js:

_.mixin({ "eachSlice": function(obj, size, iterator, context) {
    for (var i=0, l=obj.length; i < l; i+=size) {
      iterator.call(context, obj.slice(i,i+size), i, obj);
    } }});

Here's a demo.

Problem

I am looking for an equivalent of Ruby's Enumerable#each_slice in Javascript. I am already using the great underscore.js that has each(), map(), inject()... Basically, in Ruby this great method does this : ``` [1, 2, 3, 4, 5, 6, 7, 8, 9, 10].each_slice(3) {|a| p a} # outputs below [1, 2, 3] [4, 5, 6] [7, 8, 9] [10] ```

Original source