var gulp = require('gulp'); var browserify = require('browserify'); var babelify = require('babelify'); var source = require('vinyl-source-stream'); var src = { sass: 'scss/*.scss', javascript: 'js/src/**/*.js' }; var dest = { css: 'css', javascript: 'js' }; gulp.task('scripts', function() { browserify('./js/src/overwatch.js', { debug: true }) .transform("babelify", { presets: ["es2015"] }) .bundle() .pipe(source('app.js')) .pipe(gulp.dest(dest.javascript)) });