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File watching pattern

The File watching pattern is a development workflow strategy designed to streamline the development process by automating the detection of file changes and triggering subsequent actions.^[600-developer-frontend-fe-tools-glup-livereload.md]

In a typical implementation, a background process—often a task runner or development server—monitors specific files or directories for modifications (such as saving a file).^[600-developer-frontend-fe-tools-glup-livereload.md] Once a change is detected in the source files, the system automatically executes defined tasks, such as recompiling assets or refreshing the browser.^[600-developer-frontend-fe-tools-glup-livereload.md]

This pattern is closely associated with tools like Gulp and Browser Sync.^[600-developer-frontend-fe-tools-glup-livereload.md] In the context of Gulp, the gulp.watch method is used to monitor file paths, while gulp-livereload or gulp-connect handles the server updates.^[600-developer-frontend-fe-tools-glup-livereload.md] Similarly, Browser Sync can act as a proxy to watch files (e.g., CSS, JS, JSP) and automatically reload the browser when changes occur.^[600-developer__tools__browerHotReload.md]

Sources

^[600-developer-frontend-fe-tools-glup-livereload.md, 600-developer__tools__browerHotReload.md]