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.
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 salesforce.com, 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 non-salesforce.com
products, and utilization and selling to larger enterprise customers. Further information on potential factors that could affect the
financial results of salesforce.com, 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. Salesforce.com, inc. assumes no obligation and does not intend to
update these forward-looking statements.

3.
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The video will be posted to YouTube & the
webinar recap page (same URL as registration).
This webinar is being recorded!
@salesforcedevs

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 developer.salesforce.com/forums

5.
Agenda
● What's new in Web Standards
● What, Why and How of the Lightning Web Component Framework
● Exciting Demos

6.
The World of Web Development has Changed
2014 2019
+

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.
Benefits of web components
Reusability
Interoperability
Encapsulation
Extensibility
Composability

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.
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.
Demo

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.
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.
BUILD TEST QUALITY DEPLOYFRAMEWORK
Leverage the Broader Open Source Community
Developers learn one framework that works anywhere with their preferred tools

15.
Open Source is Part of the Salesforce Story
Salesforce is committed to open source and advancing web standards
Lightning Web
Components
https://opensource.salesforce.com/

16.
Demo

17.
Get Started with LWC Open Source Today!
Learn more about building with web standards through these useful resources
recipes.lwc.dev
lwc.dev
Explore more at lwc.dev
Dive into the source code and documentation to understand and iterate on
the framework
Check out code samples at recipes.lwc.dev
Visit this page to see code samples to build on the framework

18.
Q & A
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Join the conversation: @salesforcedevs
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19.
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