euphony | MIDI visualizer in WebGL | Audio Utils library

I have 2 files index.js and sort.js.

index.js file contains a variable "x" whose value is an array of objects of English words. Each object contains a "pos" property which is again an array, whose value can be n, v, adj, adv (contains at least one values)

sort.js contains a function which takes variable "x" as its parameter. Then it arranges words in such a way that each pos value becomes a separate array inside the main array.

The code is working in jsfiddle, but getting an empty array as an output in my project. I have tried the different exporting method in sort.js file like module.exports etc.

Note: I am using lodash as a dependency.

Here is the code of both the files:

index.js