Unraveling the mysteries of webpack configuration

import * as webpack from 'webpack';

...

transforms.webpackConfiguration = (config: webpack.Configuration) => {
    patchWebpackConfig(config, options);

While reviewing code within an Angular project, I came across the snippet above. One particular aspect that caught my attention is the argument being passed to the anonymous function: webpack.Configuration. Despite conducting some research, I was unable to locate documentation on this specific datatype and unfortunately cannot delve deeper into the implementation details on my local setup. Any insights or helpful resources pertaining to this matter would be greatly appreciated.

Cheers!

javascriptangulartypescriptwebpackbrowser

Answer №1

To clarify, the TypeScript type annotation on the right side of the : in the arrow function argument indicates that the function only takes one argument (config), which must be of type webpack.Configuration.

The definitions for webpack types are stored in the package @types/webpack (as of July 2020). To view these definitions, you can install them using npm install @types/webpack and then refer to 

node_modules/@types/webpack/index.d.ts
, where you will find the Configuration interface within the webpack namespace.

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