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Open Source Process:
      jQuery
                  John Resig
 http://ejohn.org/ - http://twitter.com/jeresig
jQuery
✦   A JavaScript library designed to hide
    painful cross-browser compatibility issues
    while presenting a solid, usable, API.
Simple API
✦   $(“div > span”).addClass(“foo”);
    ✦ “Find some elements”
    ✦ “Do something with them”

✦   Makes complex manipulation of web pages
    simple
Points of Concern
✦   Primary issues:
    ✦ Quality of API
    ✦ Quality of browser-issue-hiding

✦   Other issues:
    ✦ Speed, community, licensing,
      development team, openness, test
      coverage, API documentation, tutorials,
      books, demos
Space
✦   Highly competitive space
✦   Released Jan. 2006 - already a dominant
    player: Prototype JavaScript Library
✦   (Bundled with Ruby on Rails, had some
    nice coattail growth.)
✦   Other libraries: Dojo, Yahoo UI,
    MooTools
jQuery Open Source Process (Knight Foundation 2011)
jQuery Open Source Process (Knight Foundation 2011)
Things That Are Important
✦   Technical
    ✦ API Design
      (Usability, documentation)
    ✦ Code Quality
      (Licensing, openness, test coverage)
✦   Non-technical
    ✦ Community
      (Resources, responsiveness)
    ✦ Learning Aides
      (Tutorials, books, demos)
What it all boils down to...
✦   How quickly can you get your user hooked
    - and are you giving them room, and the
    resources, to grow?


✦   Put yourself in your user’s shoes.
Se                                                In                                                        H
                           co                                                te                                                          om
                             nd                                                   gr                                                           ep
                                                                                     at
                                     Ap                                                 io                                                           ag
                                           p                                              n                                                            e


                         Ex                                                                                                         Vi
                              pl                                           AP                                                            ew
                                   or                                        ID                                                               Tu
                                     eA                                              oc                                                          t  or
                                       PI                                               s                                                              ial

                                                                           Co                                                        D
                                                                             m                                                           ow
                         Ex
                              te                                                   m                                                           nl
                                                                                    un                                                              oa
                                nd                                                     i   ty                                                         d
                                     AP
                                       I

                                                                                                                                    Tr
                         Re
                                                                            Tu
                                                                               t                                                       y   Tu
                           ad                                                     or                                                          t
                                                                                     ial                                                        or
                                   So                                                    s                                                         ial
                                     ur
                                       ce

The First Year: Growth
                                               The First Month: Learning
                                                                                                 The First Day: Can this help me?




                         Co
                           nt                                              Ex                                                       Ex
                                   rib                                       pe                                                          pe
                                      ut                                        r   im                                                      r   im
                                         e                                             en                                                            en
                                                                                             t                                                         t
                                                                                                                                                             Watch the full process
Attrition
Failure at any step costs your project another user.

      Your project is your own worst enemy.
The First Day
 “After spending less than 3 hours reading blog posts
  and perusing the documentation I was able to do a
lot more in a lot less time then ever before. The huge
   community and neatly organized jQuery plugins
 make me feel like a sucker for not having jQuery for
                    my pet-project.”

  http://aleembawany.com/2009/01/16/switching-from-prototype-to-jquery/
Homepage
✦   Set a good first impression
✦   Answer the questions:
    ✦ What is this?
    ✦ What can it do for me?
    ✦ Where can I go to learn more?
jQuery Open Source Process (Knight Foundation 2011)
Getting Started Tutorial
✦   Clear, focused
✦   Assume no background knowledge
Download
✦   Make it super-easy, remove any barriers
✦   (We link straight to the source, no .zip)
Licensing
✦   Not a concern for some of people
✦   A huge concern for a lot of corporate users
✦   Use the most-open license possible
    ✦ Fewest number of restrictions gives you
      the largest possible market
✦   We use the MIT license for jQuery
    ✦ “Leave my name on the source file”
Try the Tutorial
✦   ...and subsequent Experimentation
✦   All about code quality
    ✦ For JavaScript libraries: Make sure your
      code is seamless across browsers
    ✦ For desktop apps: Is it truly cross-
      platform? Are there dependencies?
✦   The user should never be forced to ask for
    help in order to get started
    ✦ Asking for help “getting started” is a
      failure case on your end
Simplicity
✦   Simple APIs are king
✦   Users understand quicker
✦   Get started faster
✦   Become advanced quicker
The First Month
“Alright I am now really really into jQuery. I used to
hate javascript. WHAT HAS HAPPENED HERE?
           Javascript people, speak to me.”

            http://twitter.com/_ralph/status/1123503553
Community Resources
✦   Provide places for users to ask questions
✦   jQuery:
    ✦ jQuery Forum
    ✦ IRC Channel

✦   External:
    ✦ StackOverflow.com
    ✦ Twitter
    ✦ Blogs
Monitor Your Community
✦   Make sure that everyone is getting the
    help that they need
✦   We run an Evangelism Team
    “Developer Relations”
✦   Track all of the services they use
    ✦ Forum - Subscribe to the forums
    ✦ IRC - Sit in the IRC channel
    ✦ Blogs - Use Technorati and Google Blog
      Search
    ✦ Twitter - Use Twitter Search
Service
Treat every user as a potential, future, contributor.
Service




✦   Today Mike Alsup and Michael Geary are
    part of the jQuery team
Twitter Tracking
✦   Track people talking about the code:
    ✦ http://search.twitter.com/

✦   Look for people having trouble, asking
    questions
Answer Questions
✦   It takes a lot of time, but sometimes it’s
    really worth it
✦   You never know who could be having
    trouble
Follow-up With Large Users
✦   Maintain a list of contacts with your large
    users
✦   Ping them every once in a while
✦   Make sure that they’re having a good
    experience
✦   They frequently forget to file bugs - make
    sure that happens
API Documentation
✦   jQuery had API docs from the start (2006)
✦   Two other major libraries: Dojo, Prototype
    didn’t have any until 2007+
✦   Clarity and usability of documentation is
    huge
API Example
Alternative Views
Learn More
✦   Tutorials and Books
✦   Tutorials are short and drive home a point
    or single topic
✦   “Books” are more holistic and lead the
    reader from start to finish
Tutorials
The First Year
API Buy-in
✦   Once users start using an API for an
    application they generally stick with it
✦   Every new application is an opportunity to
    snag, or lose, a user
✦   All boils down to attrition: Did your user
    have a good experience building the first
    application?
Growth
You need to give users some place to grow to.
Open Process
✦   Open Source is easy
    (just release the code
    and be done with it)
✦   Open Process is hard
    (open source control,
    easy bug tracking)
✦   A good process helps
    users learn
Core Development Process
✦   Weekly, public, team meetings
✦   Defined release dates and schedule
✦   Frequent discussion in #jquery-dev (IRC)
    ✦ Active participation of the committers
      and the bug triage team
Weekly Meeting Notes
Bug Triage Team
✦   Responsible for processing all the bugs in
    the bug tracker
    ✦ Make sure test cases are filed

✦   Work through pulls in the Github pull
    request queue
✦   Make sure the test suite is passing
Bugs
Roadmap Decisions
✦   Put up a public form for people to submit
    possible feature suggestions
✦   The team works through all the feature
    suggestions and creates a list
    ✦ All of this is done in a publicly and
      discussed in a public meeting
Roadmap
Extensibility
✦   Your API isn’t perfect -
    it can’t include everything
    for everyone
✦   Give users the ability to
    add their own functionality
✦   jQuery has a healthy plugin
    community with hundreds
    of plugins.
✦   Gives jQuery a huge leg up
    on other libraries.
Complex Applications
✦   Users will attempt to build increasingly
    complex applications
✦   Need to be there to help, otherwise they’ll
    leave for something else
✦   jQuery UI - A set of complex User
    Interface components.
jQuery UI
Contributions
✦   How does a user become a contributor?
✦   Encouragement is the biggest factor
    ✦ Encourage users to submit bug reports
    ✦ Encourage them to build test cases
    ✦ Encourage them to submit patches

✦   Praise them when something good is done.
✦   Communication is a huge factor here,
    “dead” bugs or mailing list threads cripple
    participation.
Overview
✦   Help your users at every step of the way
✦   Track them and help the stragglers
✦   Help them grow and flourish




✦   Questions?
    ✦ jeresig@gmail.com
    ✦ http://ejohn.org/
    ✦ http://twitter.com/jeresig
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jQuery Open Source Process (Knight Foundation 2011)

  • 1. Open Source Process: jQuery John Resig http://ejohn.org/ - http://twitter.com/jeresig
  • 2. jQuery ✦ A JavaScript library designed to hide painful cross-browser compatibility issues while presenting a solid, usable, API.
  • 3. Simple API ✦ $(“div > span”).addClass(“foo”); ✦ “Find some elements” ✦ “Do something with them” ✦ Makes complex manipulation of web pages simple
  • 4. Points of Concern ✦ Primary issues: ✦ Quality of API ✦ Quality of browser-issue-hiding ✦ Other issues: ✦ Speed, community, licensing, development team, openness, test coverage, API documentation, tutorials, books, demos
  • 5. Space ✦ Highly competitive space ✦ Released Jan. 2006 - already a dominant player: Prototype JavaScript Library ✦ (Bundled with Ruby on Rails, had some nice coattail growth.) ✦ Other libraries: Dojo, Yahoo UI, MooTools
  • 8. Things That Are Important ✦ Technical ✦ API Design (Usability, documentation) ✦ Code Quality (Licensing, openness, test coverage) ✦ Non-technical ✦ Community (Resources, responsiveness) ✦ Learning Aides (Tutorials, books, demos)
  • 9. What it all boils down to... ✦ How quickly can you get your user hooked - and are you giving them room, and the resources, to grow? ✦ Put yourself in your user’s shoes.
  • 10. Se In H co te om nd gr ep at Ap io ag p n e Ex Vi pl AP ew or ID Tu eA oc t or PI s ial Co D m ow Ex te m nl un oa nd i ty d AP I Tr Re Tu t y Tu ad or t ial or So s ial ur ce The First Year: Growth The First Month: Learning The First Day: Can this help me? Co nt Ex Ex rib pe pe ut r im r im e en en t t Watch the full process
  • 11. Attrition Failure at any step costs your project another user. Your project is your own worst enemy.
  • 12. The First Day “After spending less than 3 hours reading blog posts and perusing the documentation I was able to do a lot more in a lot less time then ever before. The huge community and neatly organized jQuery plugins make me feel like a sucker for not having jQuery for my pet-project.” http://aleembawany.com/2009/01/16/switching-from-prototype-to-jquery/
  • 13. Homepage ✦ Set a good first impression ✦ Answer the questions: ✦ What is this? ✦ What can it do for me? ✦ Where can I go to learn more?
  • 15. Getting Started Tutorial ✦ Clear, focused ✦ Assume no background knowledge
  • 16. Download ✦ Make it super-easy, remove any barriers ✦ (We link straight to the source, no .zip)
  • 17. Licensing ✦ Not a concern for some of people ✦ A huge concern for a lot of corporate users ✦ Use the most-open license possible ✦ Fewest number of restrictions gives you the largest possible market ✦ We use the MIT license for jQuery ✦ “Leave my name on the source file”
  • 18. Try the Tutorial ✦ ...and subsequent Experimentation ✦ All about code quality ✦ For JavaScript libraries: Make sure your code is seamless across browsers ✦ For desktop apps: Is it truly cross- platform? Are there dependencies? ✦ The user should never be forced to ask for help in order to get started ✦ Asking for help “getting started” is a failure case on your end
  • 19. Simplicity ✦ Simple APIs are king ✦ Users understand quicker ✦ Get started faster ✦ Become advanced quicker
  • 20. The First Month “Alright I am now really really into jQuery. I used to hate javascript. WHAT HAS HAPPENED HERE? Javascript people, speak to me.” http://twitter.com/_ralph/status/1123503553
  • 21. Community Resources ✦ Provide places for users to ask questions ✦ jQuery: ✦ jQuery Forum ✦ IRC Channel ✦ External: ✦ StackOverflow.com ✦ Twitter ✦ Blogs
  • 22. Monitor Your Community ✦ Make sure that everyone is getting the help that they need ✦ We run an Evangelism Team “Developer Relations” ✦ Track all of the services they use ✦ Forum - Subscribe to the forums ✦ IRC - Sit in the IRC channel ✦ Blogs - Use Technorati and Google Blog Search ✦ Twitter - Use Twitter Search
  • 23. Service Treat every user as a potential, future, contributor.
  • 24. Service ✦ Today Mike Alsup and Michael Geary are part of the jQuery team
  • 25. Twitter Tracking ✦ Track people talking about the code: ✦ http://search.twitter.com/ ✦ Look for people having trouble, asking questions
  • 26. Answer Questions ✦ It takes a lot of time, but sometimes it’s really worth it ✦ You never know who could be having trouble
  • 27. Follow-up With Large Users ✦ Maintain a list of contacts with your large users ✦ Ping them every once in a while ✦ Make sure that they’re having a good experience ✦ They frequently forget to file bugs - make sure that happens
  • 28. API Documentation ✦ jQuery had API docs from the start (2006) ✦ Two other major libraries: Dojo, Prototype didn’t have any until 2007+ ✦ Clarity and usability of documentation is huge
  • 31. Learn More ✦ Tutorials and Books ✦ Tutorials are short and drive home a point or single topic ✦ “Books” are more holistic and lead the reader from start to finish
  • 34. API Buy-in ✦ Once users start using an API for an application they generally stick with it ✦ Every new application is an opportunity to snag, or lose, a user ✦ All boils down to attrition: Did your user have a good experience building the first application?
  • 35. Growth You need to give users some place to grow to.
  • 36. Open Process ✦ Open Source is easy (just release the code and be done with it) ✦ Open Process is hard (open source control, easy bug tracking) ✦ A good process helps users learn
  • 37. Core Development Process ✦ Weekly, public, team meetings ✦ Defined release dates and schedule ✦ Frequent discussion in #jquery-dev (IRC) ✦ Active participation of the committers and the bug triage team
  • 39. Bug Triage Team ✦ Responsible for processing all the bugs in the bug tracker ✦ Make sure test cases are filed ✦ Work through pulls in the Github pull request queue ✦ Make sure the test suite is passing
  • 40. Bugs
  • 41. Roadmap Decisions ✦ Put up a public form for people to submit possible feature suggestions ✦ The team works through all the feature suggestions and creates a list ✦ All of this is done in a publicly and discussed in a public meeting
  • 43. Extensibility ✦ Your API isn’t perfect - it can’t include everything for everyone ✦ Give users the ability to add their own functionality ✦ jQuery has a healthy plugin community with hundreds of plugins. ✦ Gives jQuery a huge leg up on other libraries.
  • 44. Complex Applications ✦ Users will attempt to build increasingly complex applications ✦ Need to be there to help, otherwise they’ll leave for something else ✦ jQuery UI - A set of complex User Interface components.
  • 46. Contributions ✦ How does a user become a contributor? ✦ Encouragement is the biggest factor ✦ Encourage users to submit bug reports ✦ Encourage them to build test cases ✦ Encourage them to submit patches ✦ Praise them when something good is done. ✦ Communication is a huge factor here, “dead” bugs or mailing list threads cripple participation.
  • 47. Overview ✦ Help your users at every step of the way ✦ Track them and help the stragglers ✦ Help them grow and flourish ✦ Questions? ✦ jeresig@gmail.com ✦ http://ejohn.org/ ✦ http://twitter.com/jeresig