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Enterprise-grade UI with open source Lightning Web Components

Earlier this year, we released Lightning Web Components (LWC), a new UI framework based on web standards and optimized for performance and developer productivity. We have now open sourced the Lightning Web Components framework so that anyone can build applications on any platform.

Join our webinar where we'll explore how this framework, based on standard HTML, modern JavaScript (ES6+), and the best of native Web Components, helps you create web components and apps using the stack and tools you prefer.

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Enterprise-grade UI with open source Lightning Web Components

  1. 1. Enterprise-grade UI with Open Source Lightning Web Components July 18, 2019 | 10:30 a.m. IST Satya Sekhar Sr. Developer Evangelist Salesforce Aditya Naag Topalli Sr. Developer Evangelist Salesforce
  2. 2. Forward-Looking Statement Statement under the Private Securities Litigation Reform Act of 1995: This presentation may contain forward-looking statements that involve risks, uncertainties, and assumptions. If any such uncertainties materialize or if any of the assumptions proves incorrect, the results of, inc. could differ materially from the results expressed or implied by the forward-looking statements we make. All statements other than statements of historical fact could be deemed forward-looking, including any projections of product or service availability, subscriber growth, earnings, revenues, or other financial items and any statements regarding strategies or plans of management for future operations, statements of belief, any statements concerning new, planned, or upgraded services or technology developments and customer contracts or use of our services. The risks and uncertainties referred to above include – but are not limited to – risks associated with developing and delivering new functionality for our service, new products and services, our new business model, our past operating losses, possible fluctuations in our operating results and rate of growth, interruptions or delays in our Web hosting, breach of our security measures, the outcome of any litigation, risks associated with completed and any possible mergers and acquisitions, the immature market in which we operate, our relatively limited operating history, our ability to expand, retain, and motivate our employees and manage our growth, new releases of our service and successful customer deployment, our limited history reselling products, and utilization and selling to larger enterprise customers. Further information on potential factors that could affect the financial results of, inc. is included in our annual report on Form 10-K for the most recent fiscal year and in our quarterly report on Form 10-Q for the most recent fiscal quarter. These documents and others containing important disclosures are available on the SEC Filings section of the Investor Information section of our Web site. Any unreleased services or features referenced in this or other presentations, press releases or public statements are not currently available and may not be delivered on time or at all. Customers who purchase our services should make the purchase decisions based upon features that are currently available., inc. assumes no obligation and does not intend to update these forward-looking statements.
  3. 3. Go Social! Salesforce Developers Salesforce Developers Salesforce Developers The video will be posted to YouTube & the webinar recap page (same URL as registration). This webinar is being recorded! @salesforcedevs
  4. 4. Have Questions? ● Don’t wait until the end to ask your question! ● Technical support will answer questions starting now. ● Respect Q&A etiquette ● Please don’t repeat questions. The support team is working their way down the queue. ● Stick around for live Q&A at the end ● Speakers will tackle more questions at the end, time-allowing ● Head to Developer Forums ● More questions? Visit
  5. 5. Agenda ● What's new in Web Standards ● What, Why and How of the Lightning Web Component Framework ● Exciting Demos
  6. 6. The World of Web Development has Changed 2014 2019 +
  7. 7. What are web components? ● Custom elements ● Define your own custom HTML tags like <hello-world> ● Shadow DOM ● Create scoped sub-trees in DOM ● Used for encapsulation ● HTML templates ● The elements <template> and <slot> allow you to create reusable markup for custom elements. ● HTML Templates are rendered at runtime by JavaScript. Allow you to create new custom, reusable, encapsulated HTML tags
  8. 8. Benefits of web components Reusability Interoperability Encapsulation Extensibility Composability
  9. 9. Standards: Modules ● Each module is a piece of code that is executed once a JavaScript file is loaded. ● import and export statements are used to use and create modules ECMAScript 6 +
  10. 10. Standards: Decorators ● Extending the behavior of a function without explicitly modifying it. ● You apply it by prefixing the decorator with an `@` character and placing this at the very top of what you are trying to decorate. ECMAScript 6 + (proposed for standardization)
  11. 11. Demo
  12. 12. Built with Modern Web Standards Use the modern language of the web: ES6+, Custom Elements, Modules, and Templates Built for performance More code executed by the browser instead of JavaScript abstractions for a blazing fast experience Compatible and easy to use Compatible with IE 11 (required polyfills are added) Backward compatibility Introducing Lightning Web Components Build modern apps on a standards-based JavaScript framework Web Components Templates Custom Elements Shadow DOM Modules ECMAScript 6+ Events Standard Elements Rendering Lightning Web Components Framework Salesforce Bindings Salesforce Components
  13. 13. Lightning Web Components Framework NOW OPEN SOURCE Use the same framework on and off the Lightning Platform Learn by exploring the source code Drive the roadmap by contributing code Lightning Base Components Salesforce Bindings Build Anywhere with Lightning Web Components Open Source
  14. 14. BUILD TEST QUALITY DEPLOYFRAMEWORK Leverage the Broader Open Source Community Developers learn one framework that works anywhere with their preferred tools
  15. 15. Open Source is Part of the Salesforce Story Salesforce is committed to open source and advancing web standards Lightning Web Components
  16. 16. Demo
  17. 17. Get Started with LWC Open Source Today! Learn more about building with web standards through these useful resources Explore more at Dive into the source code and documentation to understand and iterate on the framework Check out code samples at Visit this page to see code samples to build on the framework
  18. 18. Q & A Try Trailhead: Join the conversation: @salesforcedevs Join Trailblazer Community Group:
  19. 19. Survey Your feedback is crucial to the success of our webinar programs. Please fill out the survey at the end of the webinar. Thank you!