Lightning Web Components are a JavaScript programming model for building web applications and interfaces that is built on the best of web standards. Any front-end web developer can get started with LWC and leverage custom elements, and JavaScript APIs to create modern apps and experiences that are fully aware of Salesforce data and processes.

1. Lightning Web Components
Episode 1 - Introduction
November 16, 2018 | 11:00 a.m. IST
Satya Sekhar
Sr. Developer Evangelist
Salesforce
Shashank Srivatsavaya
Developer Relations, Senior
Manager
Salesforce
Nirankush Panchbhai
VP, Product Management
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.

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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
● Lightning Web Components - Introduction
● Sample Gallery
● Component Library and Playground
● Base Lightning Components
● Developer Tooling – Salesforce CLI and VS Code
● Lightning Web Components Demo

6. Enhanced productivity
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
Runs side-by-side with existing Lightning components
and can be composed with clicks or code
Introducing Lightning Web Components
Generally
Available
Spring ‘19
(Feb)
New programming model built on modern web standards

7. 2014 Web Stack

8. Fragmentation
● Proliferation of frameworks
● Components are not interoperable
● Skills are not transferable
● Resources are hard to find
● Framework abstractions are slow

9. W3C and ECMAScript Standardization
● ECMAScript 6,7,8,9
● Classes
● Modules
● Promises
● Decorators
● Web components
● Custom elements
● Shadow DOM
● Templates and slots

10. Web Stack Transformation
Fram
eworks
W
eb
Standards
Frameworks
Web Standards
2014 Web Stack 2019 Web Stack Lightning Web Components

11. Benefits
● More standards, less proprietary
● Common component model
● Transferable skills
● Easier-to-ramp-up for developers
● Better performance

12. Coexistence and Interoperability

13. Lightning Web Component Anatomy
META
● The HTML template element
contains component’s markup.
● Contains Component Code in a
Javascript Class
● Contains the metadata values
for the component

14. Demo
Lightning Web Component Anatomy

15. Component Library
● Component reference has documentation, specification and its usage as
LWC code
● Playground to view the existing code and also try your own code
● Library of 70+ Base Lightning
Components

16. Demo
Base Components
Component Library
Playground

17. Sample Gallery
Sample
Gallery
Recipes E-Bikes
Dream
House
Pure Aloe
Dream
Invest
Easy
Spaces

18. Developer Tooling with Salesforce DX
Best Developer Experience
Salesforce CLI VS Code
Create Web Components
Sync Changes from Dev Env
Deploy Changes to Production
Project Explorer
Integrated Debugger
GIT Integration
Code Competion

19. Demo
Hello World App using
Developer Tools

20. Lightning Web Components – Episode 2
● Lightning Data Service
● Apex and wire service
● Lighning web components in App Builder, LeX and Mobile
● Debugging JS and HTML in LWC
● Lifecycle Hooks
Working with Salesforce Data

21. Lightning Web Components – Episode 3
● Component Composition
● Interoperability and Co-existence with Aura
● Using other party javascripts
● External API
Working with Aura and External Resources

22. Lightning Web Components – Episode 4
● Events/Intercomponent communication
● Pub Sub communication
● DOM and CSS
● Security with Locker service
Inter-component Communication and Security

23. Lightning Web Components – Episode 5
● Aura Migration Strategies and Implementation
● Test Lightning Web Components with Jest
● Apex Testing
● Best Coding Practices
Migrate Aura Components and Test Lightning Components

24. Get Hands On with a Trailmix!
sforce.co/lwcModern Javascript
Developement

25. Q & A
Try Trailhead: trailhead.salesforce.com
Join the conversation: @salesforcedevs
Join Trailblazer Community Group: bit.ly/webinarinapac

26. Survey
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