I have an issue with Underscore (I use an old version [1.3.3] and can't use others for this project) _.template() function after creating optimized build.
After optimizing I have a file with all my initial modules. Underscore (like jQuery) also placed there via shim. Templates files are excluded via onBuildWrite() function and loaded dynamically.
But there is a big problem: after optimization _.template() doesn't work properly. It can't evaluate multiline (but singleline code evaluates fine in some cases [I can't check all of it]) JS in template files. So, for example it can't parse this template file:
<%
var subsIconsNames = {
promosite: 'programs',
photomodel: 'models',
photographer: 'photo',
stylist: 'stylist',
nailmaster: 'nailmaster',
expo: 'exhibition',
tourism: 'turism'
};
%>
<div><%= subsIconsNames [type] %></div>
"Uncaught ReferenceError: subsIconsNames is not defined"
But without optimization it works fine.
Thanks for your attention.
Related
I'm getting this error when I browse my webapp for the first time (usually in a browser with disabled cache).
Error: Mismatched anonymous define() module: function (require) {
HTML:
<html>
.
.
.
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.0/jquery.min.js"></script>
<script> var require = { urlArgs: "v=0.4.1.32" }; </script>
<script data-main="assets/js/main" src="assets/js/libs/require.js"></script>
<script src="assets/js/ace/ace.js?v=0.4.1.32"></script>
</body>
</html>
JS:
$(function () {
define(function (require) {
// do something
});
});
Anyone know exactly what this error means and why its happening?
source file, a short discussion about it in the github issues page
Like AlienWebguy said, per the docs, require.js can blow up if
You have an anonymous define ("modules that call define() with no string ID") in its own script tag (I assume actually they mean anywhere in global scope)
You have modules that have conflicting names
You use loader plugins or anonymous modules but don't use require.js's optimizer to bundle them
I had this problem while including bundles built with browserify alongside require.js modules. The solution was to either:
A. load the non-require.js standalone bundles in script tags before require.js is loaded, or
B. load them using require.js (instead of a script tag)
In getting started with require.js I ran into the issue and as a beginner the docs may as well been written in greek.
The issue I ran into was that most of the beginner examples use "anonymous defines" when you should be using a "string id".
anonymous defines
define(function() {
return { helloWorld: function() { console.log('hello world!') } };
})
define(function() {
return { helloWorld2: function() { console.log('hello world again!') } };
})
define with string id
define('moduleOne',function() {
return { helloWorld: function() { console.log('hello world!') } };
})
define('moduleTwo', function() {
return { helloWorld2: function() { console.log('hello world again!') } };
})
When you use define with a string id then you will avoid this error when you try to use the modules like so:
require([ "moduleOne", "moduleTwo" ], function(moduleOne, moduleTwo) {
moduleOne.helloWorld();
moduleTwo.helloWorld2();
});
I had this error because I included the requirejs file along with other librairies included directly in a script tag. Those librairies (like lodash) used a define function that was conflicting with require's define. The requirejs file was loading asynchronously so I suspect that the require's define was defined after the other libraries define, hence the conflict.
To get rid of the error, include all your other js files by using requirejs.
Per the docs:
If you manually code a script tag in HTML to load a script with an
anonymous define() call, this error can occur.
Also seen if you
manually code a script tag in HTML to load a script that has a few
named modules, but then try to load an anonymous module that ends up
having the same name as one of the named modules in the script loaded
by the manually coded script tag.
Finally, if you use the loader
plugins or anonymous modules (modules that call define() with no
string ID) but do not use the RequireJS optimizer to combine files
together, this error can occur. The optimizer knows how to name
anonymous modules correctly so that they can be combined with other
modules in an optimized file.
To avoid the error:
Be sure to load all scripts that call define() via the RequireJS API.
Do not manually code script tags in HTML to load scripts that have
define() calls in them.
If you manually code an HTML script tag, be
sure it only includes named modules, and that an anonymous module that
will have the same name as one of the modules in that file is not
loaded.
If the problem is the use of loader plugins or anonymous
modules but the RequireJS optimizer is not used for file bundling, use
the RequireJS optimizer.
The existing answers explain the problem well but if including your script files using or before requireJS is not an easy option due to legacy code a slightly hacky workaround is to remove require from the window scope before your script tag and then reinstate it afterwords. In our project this is wrapped behind a server-side function call but effectively the browser sees the following:
<script>
window.__define = window.define;
window.__require = window.require;
window.define = undefined;
window.require = undefined;
</script>
<script src="your-script-file.js"></script>
<script>
window.define = window.__define;
window.require = window.__require;
window.__define = undefined;
window.__require = undefined;
</script>
Not the neatest but seems to work and has saved a lot of refractoring.
Be aware that some browser extensions can add code to the pages.
In my case I had an "Emmet in all textareas" plugin that messed up with my requireJs.
Make sure that no extra code is beign added to your document by inspecting it in the browser.
Or you can use this approach.
Add require.js in your code base
then load your script through that code
<script data-main="js/app.js" src="js/require.js"></script>
What it will do it will load your script after loading require.js.
I was also seeing the same error on browser console for a project based out of require.js. As stated under MISMATCHED ANONYMOUS DEFINE() MODULES at https://requirejs.org/docs/errors.html, this error has multiple causes, the interesting one in my case being: If the problem is the use of loader plugins or anonymous modules but the RequireJS optimizer is not used for file bundling, use the RequireJS optimizer. As it turns out, Google Closure compiler was getting used to merge/minify the Javascript code during build. Solution was to remove the Google closure compiler, and instead use require.js's optimizer (r.js) to merge the js files.
This is very weird because it was all working Friday, and now it doesn't. When my program first starts, it fails on the very first require with "Module name "../common/windward" has not been loaded yet for context: _. Use require([])
http://requirejs.org/docs/errors.html#notloaded"
test-layout.html:
<script src="../../libs/jquery.js"></script>
<script src="../../libs/es6-promise.js"></script>
<script data-main="test-layout.js" src="../../libs/require.js"></script>
test-layout.js:
var windward = require('../common/windward');
The requireJS manual wants the first require to be:
require(['foo'], function (foo) {
//foo is now loaded.
});
However, this is the way the typescript compiler creates the .js file (for amd). And it worked 3 days ago.
Is there something else I need to do to get requireJS started?
this is the way the typescript compiler creates the .js file (for amd).
No. It should generate:
define(["require", "exports", "../common/windward"], function(require, exports, windward) {
});
Something seems to be calling --module commonjs in your pipeline.
I have a web application that uses Require in order to load dependencies. I have a set of JS libraries that are included using the Require config.shim object.
Two such example libraries are:
require.config({
shim: {
"libs/leaflet": {
exports: "L"
}
"libs/leaflet-dvf": {
deps: ["libs/leaflet"],
exports: "L"
}
}
The second library, leaflet-dvf requires the first, leaflet. The second is a plugin to the first that depends on the global scope variable L that the first library defines.
When I run the application using Require normally, everything works fine. I can include either library from the shim, and everything works great. No problems.
The problem comes when I run this code through the Require r.js Optimizer. The Optimizer, when it builds the single optimized JS file, will incorrectly order the dependencies. In the built file, the leaflet-dvf code will come before the leaflet code. This causes a JS runtime error because the dependant plugin cannot find the L global scope variable that is required.
My build config looks like:
({
baseUrl: "../js",
paths: {
"requireLib": "../js/libs/require"
},
include: ["requireLib"],
name: "Main",
out: "bin/Main-built.js",
optimize: "none",
wrapShim: true
})
When I run the Optimizer, using Rhino, it builds my output file. In the Main-built.js file, the code for the plugin will come before the required library. This causes an L undefined error.
How do I get the Optimizer to respect the dependency order of my Shims, in order to properly order the library files in my Optimized JS file?
I had a similar problem a while back with knockout extensions and shim didn't work correctly. This is how we solved it.
Create a module called: leafletLib
define(["libs/leaflet","libs/leadleft-dvf"],function(leftlet,dvf){
return leaflet;
});
LeafletLib has the main library and all of the extensions. On modules that have leaflet or leaflet-dvf as a dependancy you call leafletLib. It is kind of hacky but it might work for you.
define(["leafletLib"],function(leafletLib){});
Is it possible to run the TypeScript compiler in the browser for transpiling TS to JS 100% in the browser. The use case would be implementing an online TypeScript IDE that runs 100% client side and it has a "Play" button to execute the project. So I need to transpile the project to JavaScript in order for the browser to execute the code.
I presume it should be as simple as loading the relevant typescript JS files, creating an instance of the right class (compiler?) and calling a method or two.
What would be the means suitable to load the Compiler in the browser? Where is the TypeScript Compiler API Reference Documentation ? Where should I start digging in ?
This isn't asking for any specific tool, but ANY way to do this with this particular computer language, and thus is on topic.
You can use typescript-script : https://github.com/basarat/typescript-script
However do not do this in production as it is going to be slow.
You can use webpack (or a similar module bundler) to load npm packages in the browser.
Transpiling ts to js is as simple as loading the typescriptServices.js file from typescript repo or npm, and using it's window.ts.transpile(tsCode)
JSFiddle
<script src="https://unpkg.com/typescript#latest/lib/typescriptServices.js"></script>
<script>
const tsCode = 'let num: number = 123;';
const jsCode = window.ts.transpile(tsCode);
document.write(jsCode);
</script>
Outputs:
var num = 123;
You can also pass the ts compiler options object as second argument to ts.transpile() to specify whether output js should be es2020, es5, es6, and other stuff, though for meaning of values you'll likely have to dive into the source code.
Since this question got re-opened (just as planned >:D), I'm also re-posting my comment here.
#basarat's solution was great; even though his lib is outdated and abandoned, it helped me a lot in writing another, self-sufficient modern lib with support for sub-dependencies: ts-browser
Usage: (given you use relative paths in all your ts files)
<!-- index.html -->
<script type="module">
import {loadModule} from 'https://klesun.github.io/ts-browser/src/ts-browser.js';
loadModule('./index.ts').then(indexModule => {
return indexModule.default(document.getElementById('composeCont'));
});
</script>
// index.ts
import {makePanel} from './utils/SomeDomMaker'; // will implicitly use file with .ts extension
export default (composeCont) => {
composeCont.appendChild(makePanel());
};
A am relatively new to JamJS, and struggle to make it work properly.
I've got a very simple project based on Backbone and RequireJS, where I use JamJS to manage dependencies, namely: Backbone, _, Less, $, modernizr, underscore, bootstrap.
I tend to follow the method used by Backbone Boilerplate.
This is the code I use to get the Jam-compiled requireJS config file, together with my application-specific require config:
in html:
< script data-main="/assets/js/app/config" src="/assets/js/jam/compiled.min.js"> < /script>
'Compiled.min.js' is obviously the 600kb minified file generated by Jam.
The '/app/config' file is my Require.js configuration file where I'm planning to include all my project-specific code, not managed by the dependency manager.
Here's app/config.js:
require.config({
baseUrl:'/assets/js/',
deps: ['less','modernizer','bootstrap-jam','app/main'],
paths: {
'homeView': 'app/views/homeView'
// Use the underscore build of Lo-Dash to minimize incompatibilities.
,'lodash': '../jam/lodash/dist/lodash.underscore.min'
},
map: {
},
shim: {
}
});
(the files in deps are the ones I need on every page + my main.js - kind of a router.
The problem is that, in my homeView (which is initialized by main.js), I do this sort of thing:
define(['backbone'], function (Backbone) {
return Backbone.View.extend({
el:$('#homepageWrapper'),
initialize: function () {
this.$('#subTitle').text('This text is generated by homeView - the default Backbone View.');
}
})
});
As you can see I want Backbone to be available in this view. I assume that it's available through the compiled Jam code, however when I look in the Network panel in the Web Inspector, I see that this dependency is pulled in separately- this happens to any resource I try to use, not just Backbone.
I suspect that it might be something to do with the error I get as well, which I haven't been able to figure out. When using the compiled jam config, I get:
Uncaught Error: Module name "underscore" has not been loaded yet for
context: _. Use require([])
I'd really appreciate help with this
Thanks.