Okay, il s’agit d’un fichier de configuration pour un chargeur de modules JavaScript, probablement RequireJS. Décomposons ce qu’il représente.
Structure générale
Il s’agit d’un objet JSON qui définit la manière dont les modules JavaScript sont chargés et gérés. C’est essentiellement une carte indiquant au chargeur où trouver les dépendances et comment résoudre les noms de modules.
Sections clés
paths: Il s’agit de la section la plus cruciale.Elle définit des alias (noms courts) pour les chemins des modules. le chargeur utilisera ces alias lorsque vousrequire()un module.
Exemple : "adobe-pass":"https://sports.cbsimg.net/js/CBSi/app/VideoPlayer/AdobePass-min.js" signifie que lorsque votre code exécute require(['adobe-pass']),le chargeur récupérera en réalité le fichier JavaScript à partir de https://sports.cbsimg.net/js/CBSi/app/VideoPlayer/AdobePass-min.js. Modèles courants :
De nombreuses entrées pointent vers des CDN (réseaux de diffusion de contenu) tels que cdnjs.cloudflare.com ou sports.cbsimg.net. C’est bon pour les performances car les fichiers sont probablement déjà mis en cache par le navigateur de l’utilisateur. Certains points vers des chemins locaux (par exemple, "fly/libs/backbone-1.0.0"). Cela signifie que les fichiers sont situés dans la structure de répertoires de votre projet.
shim: Cette section est utilisée pour définir les dépendances des modules qui ne les déclarent pas explicitement à l’aide du format de définition de module standard de RequireJS (AMD). C’est une façon de dire au chargeur : “Ce module s’attend à ce que ces autres modules soient disponibles globalement.”
deps : un tableau de noms de modules dont le module shim dépend. le chargeur s’assurera que ces dépendances sont chargées avant le module shim.
exports : Une chaîne
Okay,this looks like a configuration file for a JavaScript module loader,likely RequireJS.Let’s break down what it represents.
Overall Structure
This is a JSON object that defines how JavaScript modules are loaded and managed.It’s essentially a map telling the loader where to find dependencies and how to resolve module names.Key Sections
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paths: This is the most crucial section. It defines aliases (short names) for module paths. The loader will use these aliases when yourequire()a module.
Example: "adobe-pass":"https://sports.cbsimg.net/js/CBSi/app/VideoPlayer/AdobePass-min.js" means that when your code does require(['adobe-pass']), the loader will actually fetch the JavaScript file from https://sports.cbsimg.net/js/CBSi/app/VideoPlayer/AdobePass-min.js. Common Patterns:
Many entries point to CDNs (Content Delivery Networks) like cdnjs.cloudflare.com or sports.cbsimg.net. This is good for performance because the files are likely already cached by the user’s browser. Some entries point to local paths (e.g., "fly/libs/backbone-1.0.0"). This means the files are located within your project’s directory structure.
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shim: This section is used to define dependencies for modules that don’t explicitly declare them using RequireJS’s standard module definition format (AMD). It’s a way to tell the loader, “This module expects these other modules to be available globally.”
deps: an array of module names that the shimmed module depends on. The loader will make sure these dependencies are loaded before the shimmed module.
exports: A string representing the global variable name that the shimmed module assigns its functionality to. This allows other modules to access the shimmed module’s functionality.
Example:
json
"fly/libs/backbone-1.0.0":{"deps":["version!fly/libs/underscore","jquery"],"exports":"Backbone"}
This means:
fly/libs/backbone-1.0.0 is a module that doesn’t use AMD.
It depends on fly/libs/underscore and jquery.
It assigns its functionality to the global variable Backbone. So, after loading, you can use Backbone in your code.
version!fly/libs/underscore indicates that the underscore version is being specified.
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map: This section defines mappings for module names. It’s used to resolve module names to specific paths,especially when dealing with versioning or different environments.
: The asterisk means that these mappings apply to all module names.
example: "adobe-pass":"https://sports.cbsimg.net/js/CBSi/app/VideoPlayer/AdobePass-min.js" This is essentially a duplicate of the paths definition, but within the map section.The map section is more powerful for complex scenarios.
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waitSeconds: This sets a timeout (in seconds) for module loading. If a module doesn’t load within this time, the loader will throw an error.300seconds (5 minutes) is a very long timeout.
specific Modules and Dependencies (Highlights)
jquery: A basic JavaScript library.Many other modules depend on it.
underscore: Another popular JavaScript utility library.
backbone: A JavaScript framework for building structured web applications.
video-avia: A video player component (likely custom to CBS Interactive). It has several plugins: video-avia-ui, video-avia-gam, video-avia-hls, video-avia-playlist.
video-ima3: Google’s Interactive Media Ads (IMA) SDK for video advertising.
facebook,twitter,google: Social media integration libraries.
dataTables: A popular JavaScript library for creating interactive tables. It has plugins: dataTables.fixedColumns, dataTables.fixedHeader.
hlsjs: A JavaScript library for playing HTTP Live Streaming (HLS) video. taboola: A content proposal engine.
supreme-golf: A module related to Supreme Golf.
how it Works in Practice
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require(['module1', 'module2'], function(module1, module2) { ... });: In your JavaScript code, you use therequire()function to specify the
