Gulpfile.js

const gulp = require('gulp'),
    imagemin = require('gulp-imagemin'),
    browserify = require('browserify'),
    babelify = require('babelify'),
    source = require('vinyl-source-stream');
    
var inputPath = "resources/assets/",
    outputPath = "public/assets/",
    assets = {
        js: inputPath + "js/main.js",
    };

gulp.task('scripts', function () {
    return browserify(assets.js, { debug: true })
        .transform(babelify, { presets: ["es2015"] })
        .bundle()
        .on('error', function(err) { console.error(err); this.emit('end'); })
        .pipe(source('master.js'))
        .pipe(gulp.dest(outputPath + 'js/'));
});