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Sure. Programmers usually group logically-related functions/classes/components into smaller files.

The logic for web "applications" these days can be complicated and involve loading hundreds of such files. If loaded individually, this requires a lot of HTTP requests and results in a slow page load time.

Bundling is similar to a static linker in that it produces a single binary out of all its dependencies. This can be loaded with a single HTTP request, cached, zipped, whatever.




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