Passing object between javascript scripts

Question

Say you have an object formatted something like the following in one script (javascript)-

var person = {
    firstName:"John",
    lastName:"Doe",
    age:50,
    eyeColor:"blue"
};

Is there an intuitive way to "send" this object to another (javascript) script? Basically, i'm trying to communicate data within 2 scripts on a webpage and attempting to avoid having one big script, which would eliminate this problem.

I've already messed around with simply creating a div with a bunch of inner div's which hold the information from the object (All it's holding is text/numbers) but I feel like there has to be a better way of doing this in either javascript or jQuery.

So you pass the object? What is the problem? Can you show how you are passing it and it is not working? — epascarello
– epascarello, Commented Dec 20, 2016 at 1:01
If this is client-side, and this isn't enclosed in a block, it will default to being global, thus available in other client-side JS scripts. — Honinbo Shusaku
– Honinbo Shusaku, Commented Dec 20, 2016 at 1:02
@epa, how exactly? 2 different scripts- how do I communicate between them? — Alex
– Alex, Commented Dec 20, 2016 at 1:03
Is it possible that you assigned something else to person? Or you reference person before the script that declares/defines it? The scripts share the same namespace. — Honinbo Shusaku
– Honinbo Shusaku, Commented Dec 20, 2016 at 1:06

John Wu · Accepted Answer · 2016-12-20 02:57:43Z

Javascript files are not nodes on a network or system components. They do not "send" or "receive" anything. They are just bits of text that don't do anything by themselves at all.

Rather, your browser loads Javascript files, interprets them, and executes them. They are all loaded into a single, common sandbox and they all share the global namespace. The idea that data is sent from one script to another is simply a misunderstanding of how this all works. If you ask developers how to send data between scripts, they are going to have trouble answering, because the question is more or less gibberish. You have to post your code and be specific about the problem you are having.

If you are receiving an error like "ReferenceError: X is not defined" it is probably because X does not exist in the scope of the function that is throwing the error. For example, if you declared X with the var keyword within a function block and then attempted to access X from another function. If you wish to access a local variable from another function, you will have to pass it as a function argument or parameter.

I can provide a much more precise answer if you post your code.

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