text: const gulp = require('gulp');
  const eslint = require('gulp-eslint');
  
  gulp.task('watch', () => {
    gulp.watch(['**/*.js', '!node_modules/**', '!test/**'], ['lint']);
  });
  
  gulp.task('lint', () => {
    return gulp.src(['**/*.js', '!node_modules/**', '!test/**'])
              .pipe(eslint())
              .pipe(eslint.format());
  });