packages/browser-sync/lib/file-watcher.js
function(event, path) {
            emitter.emit("file:changed", {
                event: event,
                path: path,
                namespace: namespace
            });
        }
function(event, path) {
            emitter.emit("file:changed", {
                event: event,
                path: path,
                namespace: namespace
            });
        }
function ( event , path ) { emitter . emit ( "file:changed" , { event : event , path : path , namespace : namespace } ) ; }
Default CB when not given
@param event
@param path
Default CB when not given