gulpfile.js

var argv = require('yargs').argv;
var gulpif = require('gulp-if');
var gulp = require('gulp');
var browserify = require('browserify');
var babelify = require('babelify');
var source = require('vinyl-source-stream');
var uglify = require('gulp-uglify');
var buffer = require('vinyl-buffer');

/**
 * Build an output file. Babelify is used to transform 'jsx' code to JavaScript code.
 **/
gulp.task("build-react", function() {
    var options = {
        entries: "./3d.jsx", // Entry point
        extensions: [".jsx"],          // consider files with these extensions as modules
        debug: argv.production ? false : true,  // add resource map at the end of the file or not
        paths: ["./"]         // This allows relative imports in require, with './scripts/' as root
    };

    return browserify(options)
        .transform(babelify)
        .bundle()
        .pipe(source("main.min.js"))
        .pipe(gulpif(argv.production, buffer())) // Stream files
        .pipe(gulpif(argv.production, uglify()))
        .pipe(gulp.dest("./build"));
});