Dynamic Require in Requirejs, Getting "Module Name Has Not Been Loaded Yet for Context" Error

Dynamic require in RequireJS, getting Module name has not been loaded yet for context error?

The limitation relates to the simplified CommonJS syntax vs. the normal callback syntax:

• http://requirejs.org/docs/whyamd.html#commonjscompat
• https://github.com/jrburke/requirejs/wiki/Differences-between-the-simplified-CommonJS-wrapper-and-standard-AMD-define

Loading a module is inherently an asynchronous process due to the unknown timing of downloading it. However, RequireJS in emulation of the server-side CommonJS spec tries to give you a simplified syntax. When you do something like this:

var foomodule = require('foo');
// do something with fooModule

What's happening behind the scenes is that RequireJS is looking at the body of your function code and parsing out that you need 'foo' and loading it prior to your function execution. However, when a variable or anything other than a simple string, such as your example...

var module = require(path); // Call RequireJS require

...then Require is unable to parse this out and automatically convert it. The solution is to convert to the callback syntax;

var moduleName = 'foo';
require([moduleName], function(fooModule){
    // do something with fooModule
})

Given the above, here is one possible rewrite of your 2nd example to use the standard syntax:

define(['dyn_modules'], function (dynModules) {
    require(dynModules, function(){
        // use arguments since you don't know how many modules you're getting in the callback
        for (var i = 0; i < arguments.length; i++){
            var mymodule = arguments[i];
            // do something with mymodule...
        }
    });

});

EDIT: From your own answer, I see you're using underscore/lodash, so using _.values and _.object can simplify the looping through arguments array as above.

Error: Module name @google-cloud/vision has not been loaded yet for context: _. Use require([])

Your code is not compatible with RequireJS which uses AMD - Asynchronous Module Definition.

AMD format looks like this:

define(['@google-cloud/storage'], (storage) {
  // body of your module here
});

The question is whether '@google-cloud/storage' is AMD compatible.

The simplest solution here would be to use more modern tooling like webpack or just use native ES6 modules if you support Chrome browser only

Uncaught Error: Module name https has not been loaded yet for context: _. Use require([])

Solution found. Just use browserify. Install browserify and then run the following command-

> browserify Dataverse_API_node.js > bundle.js

Browserify goes through all the 'require' in your script and wraps it up in bundle.js and helps to run the node.js modules in the browser.

Just add the following script in your .html file-

<script type=text/javascript src="scripts/bundle.js"></script>

Module name jquery has not been loaded yet for context: _. Use require

You've transpiled the code from TypeScript to CommonJS.

Browsers don't support the CommonJS module system, they only support the ECMAScript module system.

The requirejs library you use only supports the AMD module system.

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You should fix this at the point you transpile the code. You need to target browsers. This is most commonly done using Webpack which has a loader for TypeScript modules.

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Aside: If you're importing (and thus bundling) jQuery then you should not also load it from a CDN.

Uncaught Error: Module name express has not been loaded yet for context: _

You should read the page that comes attached with the error. express has not been loaded in your top level require, so you have to change

require(['require']

to

require(['require', 'express']

then you can freely require("express") in your code.

Module name has not been loaded yet for context using RequireJS text plugin

You're trying to require modules using CommonJS syntax which RequireJS tries to emulate by loading the template asynchronously.

Since it's not ready yet when you try to use it, it throws the error.

You'd only need the following to get it to work:

define([
    'jquery', 'underscore', 'backbone', 'jquery-ui', 'fancytree',
    'text!templates/categories.html'
], function(
    $, _, Backbone, ui, fancytree, 
    tpl
) {
    'use strict';
    return Backbone.View.extend({
        el: $('#tree'),
        template: _.template(tpl), // can be put here directly
        initialize: function() {
            // only has 3 parameters
            this.listenTo(this.collection, 'reset add change remove', this.render);
            this.collection.fetch();
        },
        render: function() {
            this.$el.html(this.template());
            return this;
        }
    });

});

Additional information (and similar questions):

• Dynamic require in RequireJS, getting "Module name has not been loaded yet for context" error?
• Module name has not been loaded yet for context
• Error: Module name "xxx" has not been loaded yet for context

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