Sharing the same instance of a class across various entry points in webpack output: A guide

Are separate instances of a class created when it is imported into different entry-point files of webpack? I need to import a class called AJAX and maintain the same instance throughout the project across all entry-point files.

Currently, AJAX is used as a global object, but I want to export it as a module in the form of a class or object, while still maintaining the same instance in all files. You can find more information about the AJAX object here.

In my webpack config file, I have two different files emitting, each importing the AJAX object.

entry: {
    db_search_new: './js/src/db_search.js',
    tbl_structure_new: './js/src/tbl_structure.js'
},
output: {
    filename: '[name].js',
    path: path.resolve(__dirname, 'js/dist'),
    publicPath: 'http://localhost:3007/js/dist'
},

How can I achieve this using javascript modules? Any suggestions on implementing singletons in JavaScript?

Answer №1

Webpack's behavior is outlined in more detail here. It is noted that Webpack maintains a separate cache for each entry point, however, you have the option to configure your settings to cache all files that end in commons.js (if splitChunks is utilized), effectively creating just one instance. Hopefully, this information proves useful.

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