JSFiddle - React, Tailwind, and code Playground

by Silvestrs Kante

HTML

<script src="//cdnjs.cloudflare.com/ajax/libs/lodash.js/2.1.0/lodash.min.js"></script>

JavaScript

var test = [
    [null, 1, 2, null],
    [9],
    [2, null, null]
];
test = _.flatten(test);
test = _.compact(test);
console.log(test)