Export all objects in node.js

Question

A node.js module of mine got too big, so I split it into several smaller (sub)modules.

I copy & pasted all relevant objects into each of the submodules, which now look like

var SOME_CONSTANT = 10;

function my_func() { etc... };

Now I want to export everything in each submodule, en masse, without having to explicitly say exports.SOME_CONSTANT = SOME_CONSTANT a million times (I find that both ugly and error prone).

What is the best way to achieve this?

george calvert · Accepted Answer · 2012-05-21 09:29:42Z

1

I assume you do not want to export every local variable.

I will get around to automating this one of these days, but for now I often use this technique.

 var x1 = { shouldExport: true  } ;

// create a macro in your favorite editor to search and replace so that

x1.name = value ; // instead of var name  = value

and

name becomes x1.name

// main body of module

for ( var i in x1) { exports.better_longer_name[i]   = x1[i] ;} 
//or if you want to add all directly to the export scope  
for ( var i in x1) {  exports[i] = x1[i] ; }

answered May 21, 2012 at 9:29

george calvert

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Torrent Lee · Accepted Answer · 2012-05-20 15:46:39Z

0

module.exports = {
    SOME_CONSTANT_0 : SOME_CONSTANT_1 ,
    SOME_CONSTANT_1 : SOME_CONSTANT_2 ,
    SOME_CONSTANT_2 : SOME_CONSTANT_3
}

so why you need that "million" constant to exports?

answered May 20, 2012 at 15:46

Torrent Lee

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2 Comments

user124114 Over a year ago

Because this duplicates code (DRY, inviting errors), plus is ugly. I'd prefer an automated solution that I could copy&paste into each submodule.

Torrent Lee Over a year ago

I think you need some trick to rebuild your code, e.g. replace = to : and ; to ,

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