A simple Webpack loader that applies a regular‑expression search‑and‑replace to source files during the build process. By configuring a `match` pattern (with optional flags) and a replacement string, developers can automatically transform any matching text (e.g., turning “bar” or “baz” into “foo”) in their bundled assets. It works with both Webpack 1 and Webpack 2, making it handy for frontend projects that need compile‑time string substitutions.