How to reference object by name in Javascript

Question

$.getScript(app.modulePath+'/'+ moduleName+'.js')   //include file
    .done(function()
{
    app.loadedModules.push(moduleName);             //track loaded modules
    app.currentModule = moduleName;                 //assign module name to object property
});

I am loading javascript modules as I need them, but am having trouble referencing them. To load the module by name, I use a string and assign the string as the currentModule. But it's a string. How to I assign the loaded object which has the same name as the string.

Example:

Images.js

var Images = (function()
{

 return {
    allImages: function(){},
    oneImage: function(){}
 };

});

app.js

var moduleName = 'Images';
$.getScript(moduleName).done(function()
{
   myApp.currentModule = moduleName;
   //how to reference currentModule as object
});

I'll be honest, I get what require.js is for, which is my situation here but its really hard to use. I'll consider it after I get a little further. Thanks. — Richard Testani
– Richard Testani, Commented Jul 4, 2015 at 16:33
@Sacreyoule Suggesting eval with a link from w3schools. That's some truly high level advice you've given. — Oka
– Oka, Commented Jul 4, 2015 at 17:05

beautifulcoder · Accepted Answer · 2015-07-04 16:19:28Z

2

You can use the global object:

window[moduleName].allImages();

answered Jul 4, 2015 at 16:19

beautifulcoder

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Comments

tinker · Accepted Answer · 2015-07-04 16:42:02Z

1

From what I understand your problem is creating the module object and assgin it right ? If im mistaken let me know in comments

So here is the soltion to your problem

app.js

var moduleName = 'Images';
$.getScript(moduleName+'.js').done(function()
{
   myApp.currentModule = new window[moduleName]();
   console.log(myApp.currentModule)
});

answered Jul 4, 2015 at 16:42

tinker

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