Module Loader
Noun · Development
Definitions
A runtime component that dynamically locates, fetches, and executes JavaScript modules on demand — historically embodied by RequireJS (AMD) and SystemJS — as distinct from a bundler, which resolves modules at build time.
In plain English: A piece of software that finds and loads code files on the fly while a program is running, rather than combining them all ahead of time.
Example: "Before ES modules landed in browsers, we relied on a module loader like RequireJS to handle async script dependencies at runtime."