gzip has no method zip #1

I've npm installed jsoncomp

but something is wrong...

I can do JSONC.compress and JSONC.decompress they both worked strait away no problem. all I needed to do was

var JSONC=require('jsoncomp/src/JSONC.js') 

But as soon as tired to do JSON.pack it would say Base64 is undefined

So I went into JSONC.js and added

var Base64=null;

  isNodeEnvironment = typeof exports === 'object' && typeof module === 'object' && typeof module.exports === 'object' && typeof require === 'function';
  if(isNodeEnvironment===true){
    Base64=require('../vendor/base64.js');
    }

then it says it the same about gzip, so i do the same with gzip...

then it says gzip has no method zip!?

console.dir says gzip looks like this:

{ gzip:
   { zip: [Function: zip],
     unzip: [Function: unzip],
     DEFAULT_LEVEL: [Getter] } }

What is wrong? Are there instructions to start using this?