gulpfile.js

var fs = require('fs');
var gulp = require('gulp');
var webpack = require('webpack');
var webpackGulp = require('webpack-stream');

/**
 * Bundle all module using webpack
 */
gulp.task('bundle', function() {
    var webpackConfig = require(fs.realpathSync('./webpack.config.js'));
    return gulp.src('')
        .pipe(webpackGulp(webpackConfig, webpack))
        .pipe(gulp.dest('.'));
});

/**
 * Compile SampleBrowser Samples.
 */
gulp.task('build', ['ship-deps'], function(done) {
    if (!fs.existsSync('./styles')) {
        fs.mkdirSync('./styles');
    }
	var runSequence = require('run-sequence');
    runSequence('bundle', done);
});


gulp.task('ship-deps', function(done) {
    gulp.src(['./node_modules/@syncfusion/ej2/*.css', './node_modules/@syncfusion/ej2/dist/*{.js,.map}', './node_modules/fuse.js/dist/fuse.min.js'])
        .pipe(gulp.dest('./dist/'))
        .on('end', function() {
            done();
        });
});
/**
 * Load the samples
 */
gulp.task('serve', ['build'], function (done) {
    var browserSync = require('browser-sync');
    var bs = browserSync.create('Essential JS 2');
    var options = {
        server: {
            baseDir: './'
        },
        ui: false
    };
    bs.init(options, done);
});