What is the "entry point" in Webpack?

Entry point in Webpack is the file from which Webpack starts building the application's dependency graph. Webpack scans this file, finds import/require statements in it, and gradually connects the rest of the project's modules.

In simple terms: the entry point is the main file from which Webpack starts building the whole application.

For example, if the config specifies:

then Webpack:

1. takes src/index.js as the starting point;
2. finds all the modules imported from it;
3. assembles them into one or several final bundles.

The entry point determines what counts as the starting point for the build, and the entire bundle is built from it.