// +build js,wasm package viper import ( "errors" "github.com/fsnotify/fsnotify" ) type watcher struct { Events chan fsnotify.Event Errors chan error } func (*watcher) Close() error { return nil } func (*watcher) Add(name string) error { return nil } func (*watcher) Remove(name string) error { return nil } func newWatcher() (*watcher, error) { return &watcher{}, errors.New("fsnotify is not supported on WASM") }