requirejs duplicate paths entries not working - javascript

I have following code as sample to research a problem. In this code "js1 and js2 loaded" never gets called, and no errors. I have tried to debug to log any errors from requirejs, but could not find the root cause.
require.config({
paths: {
jQuery : "jquery",
underScore : "underscore-min",
backBone : "backbone-min",
js1 : "js",
js2: "js"
},
shim: {
'jQuery': {
exports: '$'
},
'underScore': {
exports: '_'
},
'backBone': {
deps: ['underScore', 'jQuery'],
exports: 'Backbone'
}
},
waitSeconds: 0
});
require(["jQuery"], function(){
require(["underScore"], function(){
require(["backBone"], function(){
require(["js1","js2"], function(){
console.log('js1 and js2 loaded');
});
});
});
});

You're not getting any errors because you've set waitSeconds: 0, which disables RequireJS' timeout. See the documentation.
Using paths for this won't work. To be able to load the same actual module under two different names you need to use map:
map: {
"*": {
js2: "js1"
}
}
Note that this does not create two instances of the module. If you compare the module objects you get when you require js1 and js2 you'll see they are the same object. If what you want to do is get multiple instances of an object, you should design your code for such usage.

Related

requirejs include multiple extensions for jquery control

How do you load other extensions for a jquery control called 'fancytree' I'm trying to get fancytee to load or include the fancytree.table.js and other extensions that are needed - below is my config
require.config({
shim: {
underscore: {
exports: '_'
},
backbone: {
deps: [
'underscore',
'jquery'
],
exports: 'Backbone'
},
'jquery-ui': {
exports: "$",
deps: ['jquery']
},
'fancytree': {
deps: ['jquery-ui']
},
'alertify': {
deps: ['jquery']
},
'fancytreetable': {
deps: ['jquery', 'fancytree']
}
},
paths: {
'jquery': '../lib/jquery/jquery',
'underscore': '../lib/underscore/underscore',
'backbone': '../lib/backbone/backbone',
'text': '../lib/text/text',
'jquery-ui': '../vendor/jquery-ui/jquery-ui',
'fancytree': [
'../vendor/fancytree/fancytree',
'../vendor/fancytree/fancytree.table'/* this extension here needs to be added but it's not included */
],
'alertify': '../vendor/alertify/alertify'
},
baseUrl: '/js/app',
});
Nikhil Mehta's comment points you in the right direction. Your paths value for fancytree is wrong. You use an array there when you want to provide fallback values for modules. If you give [A, B, C], for instance, if A fails to load, RequireJS tries B and if this fails, tries C. And if all fail, then that's a load failure.
Based on the configuration you show, you'd need:
fancytree: '../vendor/fancytree/fancytree',
fancytreetable: '../vendor/fancytree/fancytree.table'
You already have a shim that establishes that fancytreetable needs fancytree.
Note that unless you are using fairly old versions of Underscore and Backbone, you do not need to specify shim values for them. RequireJS is probably going to just ignore them but it may confuse people reading your code.
Here is how made it work, requirejs with jquery.fancytree-all and latest jquery-ui with AMD support, since working with individual extensions will require a lot of shimming.
onBuildWrite is optional but i prefer it this way
requirejs.config({
paths: {
'jquery': './js/vendor/jquery',
'jquery-ui': './js/vendor/jquery-ui',
'jquery.fancytree': './js/vendor/fancytree/jquery.fancytree-all'
},
shim: {
'jquery.fancytree': {
deps: ['jquery', 'jquery-ui/core', 'jquery-ui/effect', 'jquery-ui/effects/effect-blind', 'jquery-ui/widgets/draggable', 'jquery-ui/widgets/droppable'],
exports: 'jQuery.fn.fancytree'
}
},
onBuildWrite: function (moduleName, path, contents) {
'use strict';
if (moduleName === 'jquery.fancytree') {
contents = 'define( "jquery.fancytree", ["jquery", "jquery-ui/core", "jquery-ui/effect", "jquery-ui/effects/effect-blind", "jquery-ui/widgets/draggable", "jquery-ui/widgets/droppable"], function(jQuery) { ' + contents + '});';
}
return contents;
}
});
// usage
define([
'jquery',
'jquery.fancytree',
'css!./css/fancytree/skin-custom/ui.fancytree.css',
],
function($) {
'use strict';
//
$('#tree').fancytree({
checkbox: true,
source: [{title: 'Node 1'}, {title: 'Node 2',key: 'id2'}]
});
//
});
//

The jquery.fileupload plugin causes require.js to randomly fail imports

I'm using require.js and have a page with an from that used jquery.fileupload. After introducing the plugin I now see some files fail to be imported before the define call back is executed. This causes random errors where the libraries can't find their dependencies. It's as though require.js is moving on before all the dependencies can be resolved.
I've followed these instructions:
https://github.com/blueimp/jQuery-File-Upload/wiki/How-to-use-jQuery-File-Upload-with-RequireJS
But beyond that it's a very vanilla install. I'm using the minified versions of libraries where possible. Any insight is welcome.
here's the main.js:
(function () {
'use strict';
require.config({
baseUrl: '/js',
waitSeconds: 800,
paths: {
jquery: ['//ajax.googleapis.com/ajax/libs/jquery/2.0.3/jquery.min',
'lib/jquery/jquery-2.0.3.min'],
'jquery.fileupload': 'lib/jquery.fileupload/jquery.fileupload',
'jquery.fileupload-ui': 'lib/jquery.fileupload/jquery.fileupload-ui',
'jquery.fileupload-image': 'lib/jquery.fileupload/jquery.fileupload-image',
'jquery.fileupload-validate': 'lib/jquery.fileupload/jquery.fileupload-validate',
'jquery.fileupload-video': 'lib/jquery.fileupload/jquery.fileupload-video',
'jquery.fileupload-audio': 'lib/jquery.fileupload/jquery.fileupload-audio',
'jquery.fileupload-process': 'lib/jquery.fileupload/jquery.fileupload-process',
'jquery.ui.widget': 'lib/jquery.ui/jquery.ui.widget',
'jquery.iframe-transport': 'lib/jquery.iframe-transport/jquery.iframe-transport',
'load-image': 'lib/load-image/load-image.min',
'load-image-meta': 'lib/load-image/load-image-meta',
'load-image-exif': 'lib/load-image/load-image-exif',
'load-image-ios': 'lib/load-image/load-image-ios',
'canvas-to-blob': 'lib/canvas-to-blob/canvas-to-blob.min',
tmpl: 'lib/tmpl/tmpl.min',
bootstrap: 'lib/bootstrap/bootstrap',
bootstrapTab: 'lib/bootstrap/bootstrap-tab',
EventEmitter: 'lib/event_emitter/EventEmitter',
linkedin: ['//platform.linkedin.com/in.js?async=true',
'http://platform.linkedin.com/in.js?async=true'],
skinny: 'lib/skinny/skinny',
selectize: 'lib/selectize/selectize.min',
sifter: 'lib/sifter/sifter',
microplugin: 'lib/microplugin/microplugin.min'
},
shim: {
bootstrap: {
deps: ['jquery'],
},
bootstrapTab: {
deps: ['jquery', 'bootstrap'],
},
linkedin: {
exports: 'IN'
},
selectize: {
deps: ['jquery', 'sifter', 'microplugin']
},
'jquery.iframe-transport': {
deps: ['jquery']
}
}
});
require(['app'], function (App) {
App.initialize();
});
}());
And the from code:
define([], function () {
'use strict';
return function () {
require(['jquery', 'tmpl', 'load-image', 'canvas-to-blob',
'jquery.iframe-transport', 'jquery.fileupload-ui'], function ($) {
$('#product').fileupload({
url: '/products/create'
});
});
};
});
The module gets called after the page has been loaded.
It's also worth noting that all files are downloaded successfully. No 404's, etc.
It turns out there is a flaw in the minified version of load-image.js that breaks how the dependencies load. I don't have exact proof as to why, it could be the smaller size causes a race condition, or it could be something weird in that particular file. What I do know is the minified version causes the random errors and the normal version does not (this is off master so I suppose I was taking a risk).
I raised a flag here
EDIT: it turns out the minified version of the plugin includes all the extensions which explains the odd dependency behavior.
The Answer from matt is the best solution in this case. Thanks a million, it save us a lot of time.
In requirejs.config, you have to add the load-image dependecies separatly - file by file.
For example:
require.config({
'jquery.ui.widget' : 'lib/jQuery-File-Upload-9.9.2/js/vendor/jquery.ui.widget',
'jquery.fileupload':'lib/jQuery-File-Upload-9.9.2/js/jquery.fileupload',
'jquery.fileupload-ui': 'lib/jQuery-File-Upload-9.9.2/js/jquery.fileupload-ui',
'jquery.fileupload-image': 'lib/jQuery-File-Upload-9.9.2/js/jquery.fileupload-image',
'jquery.fileupload-validate':'lib/jQuery-File-Upload-9.9.2/js/jquery.fileupload-validate',
'jquery.fileupload-audio':'lib/jQuery-File-Upload-9.9.2/js/jquery.fileupload-audio',
'jquery.fileupload-video':'lib/jQuery-File-Upload-9.9.2/js/jquery.fileupload-video',
'jquery.fileupload-process': 'lib/jQuery-File-Upload-9.9.2/js/jquery.fileupload-process',
'jquery.fileupload-jquery-ui': 'lib/jQuery-File-Upload-9.9.2/js/jquery.fileupload-jquery-ui',
'jquery.iframe-transport': 'lib/jQuery-File-Upload-9.9.2/js/jquery.iframe-transport',
'load-image':'lib/load-image-1.10.0',
'load-image-meta':'lib/load-image-meta-1.10.0',
'load-image-ios':'lib/load-image-ios-1.10.0',
'load-image-exif':'lib/load-image-exif-1.10.0',
'canvas-to-blob':'lib/canvas-to-blob-2.0.5',
'tmpl':'lib/tmpl.2.4.1'
}
});
call in html site:
requirejs(['jquery',
'jquery.ui.widget',
'tmpl',
'load-image',
'jquery.iframe-transport',
'jquery.fileupload-ui'], function () {
$('#fileupload').fileupload({
url: 'photo-upload.html'
});
}
);
One possibility modify the shim:
shim: {
bootstrap: {
deps: ['jquery'],
},
bootstrapTab: {
deps: ['jquery', 'bootstrap'],
},
linkedin: {
exports: 'IN'
},
selectize: {
deps: ['jquery', 'sifter', 'microplugin']
},
'jquery.iframe-transport': {
deps: ['jquery']
},
'jquery.fileupload-ui':{
deps: ['jquery']
}
Another option downgrade jquery to 1.X (this is because the sample page is using jquery 1.X)

Getting blank page using RequireJS and Grunt

I'm going a bit crazy here. I'm trying to use Grunt to go through a large RequireJS-based project and combine and minify the results during the deployment process. Here is my grunt process (using grunt-contrib-requirejs):
requirejs: {
compile: {
options: {
baseUrl: "public/js",
mainConfigFile: "public/js/config.js",
name: 'config',
out: "public/js/optimized/script.min.js",
preserveLicenseComments: false
}
}
}
Initially, I was taking the outputted script and placing it in the HTML -- but this lead to the 'define is undefined' error that means that RequireJS wasn't evoked. So instead, I'm putting in the HTML like this:
<script data-main="js/optimized/script.min" src="js/vendor/require.js"></script>
However, now I'm only getting a blank page.
The closest thing I can find out there that sounds like this is here, but's not being super helpful right now. For reference, I was using this as a starting point of my project -- however, when I run it, everything seems to be working for them but I can't find the differences.
Here is my config.js file:
require.config({
//Define the base url where our javascript files live
baseUrl: "js",
//Increase the timeout time so if the server is insanely slow the client won't burst
waitSeconds: 200,
//Set up paths to our libraries and plugins
paths: {
'jquery': 'vendor/jquery-2.0.3.min',
'underscore': 'vendor/underscore.min',
'backbone': 'vendor/backbone.min',
'marionette': 'vendor/backbone.marionette',
'mustache': 'vendor/mustache.min',
'bootstrap': 'vendor/bootstrap.min',
'bootbox': 'vendor/bootbox.min',
'jquery-ui': 'vendor/jquery-ui-1.10.2',
'app-ajax': '../conf/app-ajax',
'common': 'common',
'moment': 'vendor/moment.min'
},
//Set up shims for non-AMD style libaries
shim: {
'underscore': {
exports: '_'
},
'backbone': {
deps: ['underscore', 'jquery'],
exports: 'Backbone'
},
'marionette': {
deps: ['backbone', 'underscore', 'jquery'],
exports: 'Marionette'
},
'mustache': {
exports: 'mustache'
},
'bootstrap': {
deps: ['jquery']
},
'bootbox': {
deps: ['jquery', 'bootstrap'],
exports: 'bootbox'
},
'jquery-ui': {
deps: ['jquery']
},
'jquery-layout': {
deps: ['jquery', 'jquery-ui']
}
}
});
//Initalize the App right after setting up the configuration
define([
'jquery',
'backbone',
'marionette',
'common',
'mustache',
'bootbox',
'controllers/GlobalController',
'routers/GlobalRouter'
],
function ($, Backbone, Marionette, Common, Mustache, bootbox) {
//Declare ECMAScript5 Strict Mode first and foremost
'use strict';
//Define the App Namespace before anything else
var App = Common.app_namespace || {};
//Create the Marionette Application
App.Application = new Marionette.Application();
//Add wrapper region, so we can easily swap all of our views in the controller in and out of this constant
App.Application.addRegions({
wrapper: '#wrapper'
});
// Set up Initalizer (this will run as soon as the app is started)
App.Application.addInitializer(function () {
//Reach into Marionette and switch out templating system to Mustache
Backbone.Marionette.TemplateCache.prototype.compileTemplate = function (rawTemplate) {
return Mustache.compile(rawTemplate);
};
var globalController = new App.Controllers.GlobalController();
var globalRouter = new App.Routers.GlobalRouter({
controller: globalController
});
//Start Backbone History
Backbone.history.start();
});
//Start Application
App.Application.start();
}
);
Okay, so this is the crazy simple fix:
In the module that's declared after the require.config, use 'require' instead of 'define' when declaring the module.
If you use 'define', it added 'config' as a dependency of that module, which broke the whole thing. Craziness!

Is CWSpear`s hover dropdown menu amd ready (require.js)?

I was trying to make use of the CWSpear`s plugin, for dropdown menus with hover, using require.js.
But I keep getting an error for it: "Error: Script error".
What do I need to do with in order to use it with require.js?
EDIT:
To help #jakee by focusing the question, this is the configuration I've made :
requirejs.config({
paths: {
"myBootstrap": _myBootstrappingPath + "js/bootstrap",
"myControllers" : _myBootstrappingPath + "js/controllers",
//jquery
"jquery": _libsPath + "jquery/1.9.1/js/jquery",
"jquery_validate": _libsPath + "jquery/validate/1.12.0/js/jquery.validate",
//Bootstrap related
"twitterBootstrap": _libsPath + "bootstrap/2.3.1/",
"select2" : _libsPath + "select2/3.3.2/select2",
//misc
"underscore": _libsPath + "underscore/1.4.4/js/underscore",
"backbone": _libsPath + "backbone/1.0.0/js/backbone",
"backbonePageable": _libsPath + "backbone/backbone-pageable/1.2.0/js/backbone-pageable",
"backgrid": _libsPath + "backgrid/0.2.0/backgrid",
"backgridAssets": _libsPath + "backgrid/0.2.0/assets/js",
"backgridExtensions": _libsPath + "backgrid/0.2.0/extensions",
//plugins and extensions
"plugins_datetimepicker": _pluginsPath + "/datetimePicking/bootstrap-datetimepicker",
"plugins_dropdownHover": _pluginsPath + "/dropdownHover/dropdownHover",
},
shim: {
underscore: {
exports: '_'
},
backbone: {
deps: ["underscore", "jquery"],
exports: "Backbone"
},
bootstrap: {
deps: ["jquery"],
exports: "$.fn.popover"
},
'select2': ["jquery"],
'backgrid': {
deps: ["jquery", "backbone"],
exports: "Backgrid"
},
'backbonePageable': {
deps: ["jquery", "underscore", "backbone"],
exports: "PageableCollection",
init: function(nhonho){
Backbone.PageableCollection = PageableCollection;
}
},
plugins_datetimepicker: {
deps: ["jquery", "bootstrap"]
},
plugins_dropdownHover: {
deps: ["jquery", "bootstrap"]
}
}
});
and use it in:
(function (bs) {
require(["jquery",
"twitterBootstrap",
"select2",
"plugins_datetimepicker",
"plugins_dropdownHover",
"myControllers/defaultController"], function ($) {
var defaultCtrlr = new ticket.defaultController(bs);
bs.onInit();
defaultCtrlr.start(bs.options);
bs.onReady();
});
})(window.my.bootstrap);
As long as I comment the "plugins_dropdownHover" line, in the defines, it works fine. If it tries to load that script, it fails.
I see a couple possible issues with your config:
1: You may have some confusion in naming between the paths config and the shim config. For example, I see this in shim:
bootstrap: {
deps: ["jquery"],
exports: "$.fn.popover"
},
But then in paths you have this:
"twitterBootstrap": _libsPath + "bootstrap/2.3.1/",
They should match. I suspect that what happens is when you require 'plugins_dropdownHover', it looks for shim dependency 'bootstrap' and then never finds a path to load it since your paths config contains 'twitterBootstrap' and not 'bootstrap'
2: _libsPath + "bootstrap/2.3.1/" looks like a path to a folder, not a file. When you later require 'twitterBootstrap' and look at the network tab of Chrome dev tools (or whatever you use), do you see the right Bootstrap file loaded?
If you were just shimming this one library, I think it would look something like this:
requirejs.config({
paths: {
jquery: _libsPath + "jquery/1.9.1/js/jquery",
// note: full path to file (minus the .js)
bootstrap: _libsPath + "bootstrap/2.3.1/bootstrap",
plugins_dropdownHover: _pluginsPath + "/dropdownHover/dropdownHover"
},
shim: {
jquery: {
exports: ["jQuery", "$"]
},
bootstrap: {
deps: ["jquery"],
exports: "$.fn.popover"
},
plugins_dropdownHover: {
// might be able to list just bootstrap here since it will follow the chain
// and load jQuery before loading bootstrap
deps: ["bootstrap", "jquery"]
}
}
});
The Demo Page lists only three scripts: jQuery, Bootstrap, and the plugin. And this is exactly the order that RequireJS will load them with the above shim config.
Anything is practically available to use with RequireJS, either via the AMD way of through the shim config.
First you will want to know if the module is AMD-compatible. The best place to check is the source code. In RequireJS all AMD modules are declared with the define -function. If there is no reference to the said function in the source, you can be quite sure your library/plugin/whatever doesn't support AMD out of the box. If define is present, you can just import the file by declaring it in the paths config.
Thankfully RequireJS allows you to shim javascript files that don't declare their contents to be AMDable via define. What it basically does, is that you tell it what the file's dependencies are and what it should insert into the window object and RequireJS will make sure to have the deps loaded before and grabbing the results after.
paths: {
'otherlib': 'path/to/otherlib',
'mylib': 'path/to/mylib' // define alias for mylib
}
shim: {
'mylib': {
deps: ['otherlib'],
exports: 'MyLib'
}
}
As the file you're trying to load is a jquery plugin, there is no need for exports or anything, because the plugin just sticks its stuff into $. RequireJS provides a nice example of this
"shim": {
"jquery.someplugin": ["jquery"],
"jquery.otherplugin": ["jquery"]
}
N.B! In the example, RequireJs is configured so that there is no need to use aliases as the baseUrl points to the directory with jquery and the plugins!
Hope this helps!

Underscore.string with RequireJS

I'm trying to use both Underscore and Underscore.string with RequireJS.
Contents of main.js:
require.config({
paths: {
'underscore': '//cdnjs.cloudflare.com/ajax/libs/underscore.js/1.4.4/underscore-min',
'underscore-string': '//cdnjs.cloudflare.com/ajax/libs/underscore.string/2.3.0/underscore.string.min',
},
shim: {
'underscore': {
exports: '_'
},
'underscore-string': {
deps: ['underscore'],
exports: '_s'
},
}
});
var modules = ['underscore-string'];
require(modules, function() {
// --
});
Browser sees the _, but doesn't see the _s - it is undefined.
Ideally i want to have Underscore under _ and Underscore.string under _.str, but _ and _s are fine too. How can i do that?
Versions: RequireJS 2.1.5, Underscore 1.4.4, Underscore.string 2.3.0
Note: Thanks to #jgillich make sure, that paths have two slashes (//cdnjs.cloudfare.com/...), otherwise the browser would think that URL is relative to the server, and Firebug will throw:
Error: Script error
http://requirejs.org/docs/errors.html#scripterror
I found the error. For some reason RequireJS doesn't work with version of Underscore.string from cdnjs.com, so i replaced it with Github version. I guess it has something to do with the commit 9df4736.
Currently my code looks like the following:
require.config({
paths: {
'underscore': '//cdnjs.cloudflare.com/ajax/libs/underscore.js/1.4.4/underscore-min',
'underscore-string': '//raw.github.com/epeli/underscore.string/master/dist/underscore.string.min',
},
shim: {
'underscore': {
exports: '_'
},
'underscore-string': {
deps: ['underscore'],
},
}
});
var modules = ['underscore', 'underscore-string'];
require(modules, function(_) {
// --
});
Underscore.string resides in _.str.
Edit: As of 16 July 2013 the CDNJS version is updated with the upstream.
Battling with this for hours before i understand what i was doing wrong
This is what i did wrong
You should not rename the file underscore.string in main.js
even though in my library i did rename the file in paths i name it back to 'underscore.string'
This is how your main.js should look like
require.config({
paths: {
underscore: 'lib/underscore',
'underscore.string' : 'lib/_string' ,
},
shim: {
underscore: {
exports: '_',
deps: [ 'jquery', 'jqueryui' ]
},
'underscore.string': {
deps: [ 'underscore' ]
},
}
....
You could then either add it as dependency with in your shim like i did for my mixin file
shim: {
mixin : {
deps: [ 'jquery', 'underscore', 'underscore.string' , 'bootstrap' ]
},
Or just define it in your different pages like
/*global define */
define([
'underscore.string'
], function ( ) {
it just work now you can access it through _.str or _.string
This is why you should do it this way and not try to name it something else
on line 663 of underscore.string.js
// Register as a named module with AMD.
if (typeof define === 'function' && define.amd)
define('underscore.string', [], function(){ return _s; });
Which means that it will only register it with AMD require JS if you are defining 'underscore.string'
works for my ONLY if I use exact "underscore.string" module name in shim. Seems related to hardcoded name in underscore.string itself
Exempt from underscore.string source code (this branch is executed when require used):
// Register as a named module with AMD.
if (typeof define === 'function' && define.amd)
define('underscore.string', [], function(){ return _s; });
So for me the only working configuration is:
require.config({
paths: {
'underscore': '//cdnjs.cloudflare.com/ajax/libs/underscore.js/1.4.4/underscore-min',
'underscore.string': '//raw.github.com/epeli/underscore.string/master/dist/underscore.string.min',
},
shim: {
'underscore': {
exports: '_'
},
'underscore.string': {
deps: ['underscore'],
},
}
});
var modules = ['underscore', 'underscore.string'];
require(modules, function(_) {
// --
});
Here's a working code using Requirejs "order" plugin, also includes Jquery, and everything loads without any conflict:
requirejs.config({
baseUrl: "assets",
paths: {
order: '//requirejs.org/docs/release/1.0.5/minified/order',
jquery: 'http://code.jquery.com/jquery-2.1.0.min',
underscore: '//underscorejs.org/underscore-min',
underscorestring: '//raw.githubusercontent.com/epeli/underscore.string/master/dist/underscore.string.min',
underscoremixed: 'js/underscore.mixed' // Create separate file
},
shim: {
underscore: { exports: '_' },
underscorestring: { deps: ['underscore'] }
}
});
require(['order!jquery','order!underscoremixed'], function($,_) {
// test
console.log( _.capitalize('capitalized text') );
});
Inside js/underscore.mixed.js put the following...
define(['underscore','underscorestring'], function() {
_.mixin(_.str.exports());
return _;
});
Cheers! :)

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