How to use

env

function

in

Gulp

gulp.task('scripts', () => {
  gulp.src('./public/js/index.js')
    .pipe(browserify({
     insertGlobals : true,
     debug : !gulp.env.production
    }))
    .pipe(rename('app.min.js'))
    .pipe(uglify())
    .pipe(gulp.dest('./build/js'))
});

gulp.task('script', function(){
  gulp.src('src/example.js')
    .pipe(browserify({
      insertGlobals : true,
      debug: !gulp.env.production
    }))
    .pipe(gulp.dest('./build'))
});

gulp.task("bundle", function () {

  gulp.src('./build/public/main1.js')
    .pipe(browserify({
      insertGlobals : true,
      debug : !gulp.env.production
    }))
    .pipe(gulp.dest('./build/js'))

  /* return browserify({
    entries: "./build/public/main1.js",
    debug: true
  }).transform(babelify)
    .bundle()
    .pipe(source("m.js"))
    .pipe(gulp.dest("build/public")) */
});