let gulp = require('gulp'); gulp.task('watch', () => { // watch for changes in .html files gulp.watch(['src/**/*.html'], gulp.series('html')); // watch for changes in .scss files gulp.watch('src/css/scss/**/*.scss', gulp.series('styles')); // watch for changes in .ts files gulp.watch(['src/js/**/*.ts', '!src/js/**/*.min.ts'], gulp.series('webpack')); });