JSFiddle - React, Tailwind, and code Playground

by dystroy

HTML

<script src="http://underscorejs.org/underscore.js"></script>

JavaScript

var a = [1,2,3,4,5,6,7,8,9];
function partition(items, size) {
    var p = [];
    for (var i=Math.floor(items.length/size); i-->0; ) {
        p[i]=items.slice(i*size, (i+1)*size);
    }
    return p;
}
console.log(partition(a, 3));