Build optimization happens at compile time — before your code ever reaches a user’s browser. Think of it like manufacturing: you want to ship the most efficient, compressed, browser-compatible version of your product. A poorly optimized build is like shipping a mattress fully expanded — you can roll and compress it to a fraction of the size without losing any value.
What is a Bundler?
A bundler takes your source files (TypeScript, SCSS, JSX, images, fonts) as input and produces optimized, browser-compatible output files.
