How a JavaScript bundler turns many files into one

How a JavaScript bundler turns many files into one

Six files in. One file out.

A bundler starts at your entry file and follows every import to the next file. A file two others import is read once. Then it writes them all into one bundle, each file after the ones it needs.

Save it for the next time a build log scrolls past.

#javascript #webdev #esbuild #webpack #frontend #webdevelopment