What is the method for gaining access to variables and functions within bundle.js?

Hello, I am trying to figure out how to access variables in bundle.js. I want to experiment with variables and functions on the client side using JavaScript, but I'm having trouble calling them in index.html or the Chrome console.

I use browserify to bundle my script.js into bundle.js (which allows me to use 'require' since the browser doesn't recognize it). However, when I try to access variables or functions defined in script.js (now bundled into bundle.js), I receive an error such as Uncaught ReferenceError: xx is not defined.

Can anyone provide some assistance? Am I not allowed to use node packages on the client-side within HTML/scripts?

Edit: After doing some research, I found a suggestion to use XHR/AJAX from a response on this Stack Overflow thread.

Edit2: It seems like using window.xx = xx could be a temporary solution for this issue.

javascriptnpmbrowserify

Answer №1

Feel free to correct me if I'm mistaken, as I haven't had the chance to work with Browserify (I've used similar bundling/processing tools). As far as I understand, Browserify consolidates all the code from the original source file into a single bundle.js file. Inside this bundle.js, there exists a scope that is isolated and not accessible externally (unless explicitly exported, but that's a different conversation).

Consider this scenario:

// source.js
var test = require('./some-file-with-an-empty-object.js');

// Simplified representation of bundle.js
;(function(){
   var test = {};
})();

Due to the presence of an IIFE, the scope of var test is restricted and inaccessible to external scripts or the global window object.

In essence, focus on performing necessary operations within your source file rather than attempting to interact with it externally.

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