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Front End Development for Back End Developers - UberConf 2017

Front End Development for Back End Developers - UberConf 2017

Are you a backend developer that’s being pushed into front end development? Are you frustrated with all JavaScript frameworks and build tools you have to learn to be a good UI developer? If so, this session is for you! We’ll explore the tools of the trade for frontend development (npm, yarn, Gulp, Webpack, Yeoman) and learn the basics of HTML, CSS, and JavaScript.

This presentation dives into the intricacies of Bootstrap, Material Design, ES6, and TypeScript. Finally, after getting you up to speed with all this new tech, I'll show how it can all be found and integrated through the fine and dandy JHipster project.

Matt Raible

July 21, 2017

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  1. Matt Raible | @mraible Front End Development for Back End

    Developers July 21, 2017 #UberConf17
  2. Blogger on raibledesigns.com Web Developer and Java Champion Father, Skier,

    Mountain Biker, Whitewater Rafter Open Source Connoisseur Who is Matt Raible? Bus Lover Okta Developer Advocate
  3. What about You? How many consider themselves backend developers? Java,

    .NET, Python, or Node.js? Do you write code for UIs? Do you like JavaScript? What JavaScript Frameworks do you use?
  4. TypeScript $ npm install -g typescript function greeter(person: string) {

    return "Hello, " + person;
 var user = "Jane User";
 document.body.innerHTML = greeter(user); $ tsc greeter.ts https://www.typescriptlang.org/docs/tutorial.html
  5. “Node.js is a JavaScript runtime built on Chrome's V8 JavaScript

    engine. Node.js uses an event-driven, non- blocking I/O model that makes it lightweight and efficient. Node.js' package ecosystem, npm, is the largest ecosystem of open source libraries in the world.” https://nodejs.org https://github.com/creationix/nvm
  6. Front End Build Tools Old School: Gulp New School: SystemJS

    Hip: Webpack Web Dependencies: Old School: Bower New School: npm Hip: yarn
  7. Yeoman The web's scaffolding tool for modern webapps Helps you

    kickstart new projects Promotes the Yeoman workflow yeoman.io
  8. webpack.config.js module.exports = { entry: './src/app.js', output: { path: __dirname

    + '/src/main/webapp/public', filename: 'bundle.js' }, module: { loaders: [ { test: /.js$/, loader: 'babel', exclude: /node_modules/, query: { presets: ['es2015', 'react'] } } ] } };
  9. webpack for real tasks Building front-end and adding compilation Decreasing

    front-end size and improving assets caching Speeding up build and improving the development workflow iamakulov.com/pages/webpack
  10. Jobs on Indeed July 21, 2017 0 2,000 4,000 6,000

    8,000 Angular Aurelia Backbone Ember Knockout React Vue
  11. Stack Overflow Tags July 21, 2017 0 17,500 35,000 52,500

    70,000 Angular Aurelia Backbone Knockout Ember React Vue
  12. GitHub Stars July 21, 2017 0 20,000 40,000 60,000 80,000

    Angular Aurelia Backbone Knockout Ember React Vue
  13. Hello World with Angular import { Component } from '@angular/core';

    @Component({ selector: 'my-app', template: `<h1>Hello {{name}}</h1>` }) export class AppComponent { name = 'World'; } <my-app></my-app> https://angular.io/docs/ts/latest/quickstart.html
  14. Hello World with Angular import { BrowserModule } from '@angular/platform-browser';

    import { NgModule } from '@angular/core'; import { FormsModule } from '@angular/forms'; import { HttpModule } from '@angular/http'; import { AppComponent } from './app.component'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, FormsModule, HttpModule ], providers: [], bootstrap: [AppComponent] }) export class AppModule { }
  15. Hello World with Angular import { enableProdMode } from '@angular/core';

    import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { AppModule } from './app/app.module'; import { environment } from './environments/environment'; if (environment.production) { enableProdMode(); } platformBrowserDynamic().bootstrapModule(AppModule);
  16. ng-book 2 A comprehensive guide to developing with Angular 4

    Worth all your hard earned $$$ https://www.ng-book.com/2 “Thank you for the awesome book, it's the bible for Angular.” — Vijay Ganta
  17. Imperative Code if (count > 99) { if (!hasFile()) {

    addFire(); } } else { if (hasFire()) { removeFire(); } } if (count === 0) { if (hasBadge()) { removeBadge(); } return; } if (!hasBadge()) { addBadge(); } var countText = count > 99 ? "99+" : count.toString(); getBadge().setText(countText);
  18. Declarative Code if (count === 0) { return <div className="bell"/>;

    } else if (count <= 99) { return ( <div className="bell"> <span className="badge">{count}</span> </div> ); } else { return ( <div className="bell onFire"> <span className="badge">99+</span> </div> ); }
  19. Hello World with Vue.js https://jsfiddle.net/chrisvfritz/50wL7mdz/ <div id="app"> <p>{{ message }}</p>

    </div> <script> new Vue({ el: '#app', data: { message: 'Hello Vue.js!' } }); </script>
  20. Vue.js Code <script src="https://unpkg.com/vue/dist/vue.js"></script> <div id="app"> <button v-on:click="clickedButton()">Click here!</button> </div>

    <script> new Vue({ el: '#app', methods: { clickedButton: function(event) { console.log(event); alert("You clicked the button!"); } } }); </script>
  21. Cascading Style Sheets #app { background: #eee; } .blog-post {

    padding: 20px; } .blog-post > p:first { font-weight: 400; } img + span.caption { font-style: italic; }
  22. Sass: Syntactically Awesome Style Sheets #app { background: #eee; .blog-post

    { padding: 20px; > p:first { font-weight: 400; } img + span.caption { font-style: italic; } } } http://sass-lang.com
  23. CSS Framework Stars on GitHub July 21, 2017 0 30,000

    60,000 90,000 120,000 Bootstrap Foundation Pure Skeleton
  24. Front End Performance Optimization Reduce HTTP Requests Gzip HTML, JavaScript,

    and CSS Far Future Expires Headers Code Minification Optimize Images
  25. HTTP/2 Binary, instead of textual Fully multiplexed, instead of ordered

    and blocking Can use one connection for parallelism Uses header compression to reduce overhead Allows servers to “push” responses proactively into client caches
  26. HTTP/2 in JHipster /* * Enable HTTP/2 for Undertow -

    https://twitter.com/ankinson/status/829256167700492288 * HTTP/2 requires HTTPS, so HTTP requests will fallback to HTTP/1.1. * See the JHipsterProperties class and your application-*.yml configuration files * for more information. */ if (jHipsterProperties.getHttp().getVersion().equals(JHipsterProperties.Http.Version.V_2_0)) { if (container instanceof UndertowEmbeddedServletContainerFactory) { ((UndertowEmbeddedServletContainerFactory) container) .addBuilderCustomizers((builder) -> { builder.setServerOption(UndertowOptions.ENABLE_HTTP2, true); }); } }
  27. HTTP/2 Server Push in Java http://bit.ly/dz-server-push-java @WebServlet(value = {"/http2"}) public

    class Http2Servlet extends HttpServlet { @Override protected void doGet(HttpServletRequest req, HttpServletResponse resp) { PushBuilder pushBuilder = req.newPushBuilder(); pushBuilder.path("images/kodedu-logo.png") .addHeader("content-type", "image/png") .push(); try (PrintWriter respWriter = resp.getWriter();) { respWriter.write("<html>" + "<img src='images/kodedu-logo.png'>" + "</html>"); } } }
  28. Mobile Hates You! How to fight back: Implement PRPL Get

    a ~$150-200 unlocked Android (e.g. Moto G4) Use chrome://inspect && chrome://inspect?tracing Lighthouse DevTools Network & CPU Throttling
  29. The PRPL Pattern Push critical resources for the initial URL

    route Render initial route Pre-cache remaining routes Lazy-load and create remaining routes on demand
  30. Security: OWASP Top 10 1. Injection 2. Broken Auth &

    Session Mgmt 3. Cross-Site Scripting (XSS) 4. Broken Access Control 5. Security Misconfiguration 6. Sensitive Data Exposure 7. Insufficient Attack Protection 8. Cross-Site Request Forgery 9. Components w/ Vulnerabilities 10. Underprotected APIs
  31. The JHipster Mini-Book 2.0 Release on Dec 5, 2016 jhipster-book.com

    21-points.com @jhipster_book Write your own InfoQ mini-book! github.com/mraible/infoq-mini-book
  32. What You Learned ES6 and TypeScript Node.js and nvm Angular,

    React, and Vue.js CSS and Sass Front End Performance Optimization Progressive Web Apps
  33. Try

  34. Quality “A person who knows how to fix motorcycles—with Quality—is

    less likely to run short of friends than one who doesn't. And they aren't going to see him as some kind of object either. Quality destroys objectivity every time.” — Zen and the Art of Motorcycle Maintenance
  35. Software Testing With motorcycles, you drive to test them. With

    software, you can test it without driving it. Or rather, you can automate the driving. If you don’t automate tests, you’re still testing!
  36. Action! Don’t be afraid to try new things Learn JavaScript

    or TypeScript Try one of these frameworks Form your own opinions Or just wait a few months…