SlideShare uma empresa Scribd logo
1 de 59
JavaScript:   The Good Parts Douglas Crockford Yahoo! Inc. http://www.crockford.com/codecamp/
The World's Most Popular Programming Language
The World's Most Popular Programming Language The World's Most Unpopular Programming Language
A language of many contrasts.
The broadest range of programmer skills of any programming language. From computer scientists  to cut-n-pasters  and everyone in between.
It is the language that people use without bothering to learn it first.
Complaints ,[object Object],[object Object],[object Object],[object Object]
Hidden under a huge steaming pile of good intentions and blunders is an elegant, expressive programming language. JavaScript has good parts.
JavaScript is succeeding very well in an environment where Java was a total failure.
Influences ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Bad Parts ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Transitivity? What's That? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object]
Good features that interact badly ,[object Object],[object Object],[object Object]
for in is troublesome ,[object Object],[object Object],[object Object],[object Object]
for in is troublesome ,[object Object],[object Object]
Bad Heritage ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Good Parts ,[object Object],[object Object],[object Object],[object Object]
Inheritance ,[object Object],[object Object],[object Object],[object Object]
Prototypal Inheritance ,[object Object],[object Object],[object Object],[object Object],[object Object],newObject oldObject __proto__
Prototypal Inheritance ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
new ,[object Object],[object Object],[object Object]
Global ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Slow ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Closure ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
A Module Pattern ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Module pattern is easily transformed into a powerful constructor pattern.
Power Constructors ,[object Object],[object Object],[object Object],[object Object],[object Object]
Power Constructors ,[object Object],[object Object],[object Object],[object Object]
Power Constructors ,[object Object],[object Object],[object Object],[object Object],[object Object]
Power Constructors ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Step One ,[object Object],[object Object],[object Object]
Step Two ,[object Object],[object Object],[object Object],[object Object]
Step Three ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Step Four ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Closure ,[object Object],[object Object],[object Object],[object Object]
Style Isn't Subjective ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Style Isn't Subjective ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Style Isn't Subjective ,[object Object],[object Object],[object Object],[object Object]
Style Isn't Subjective ,[object Object],[object Object],[object Object],[object Object]
Style Isn't Subjective ,[object Object],[object Object],[object Object],[object Object]
Style Isn't Subjective ,[object Object],[object Object],[object Object],[object Object]
Style Isn't Subjective ,[object Object],[object Object],[object Object],[object Object]
Style Isn't Subjective ,[object Object],[object Object],[object Object],[object Object]
Style Isn't Subjective ,[object Object],[object Object],[object Object],[object Object]
Style Isn't Subjective ,[object Object],[object Object],[object Object],[object Object]
Style Isn't Subjective ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Working with the Grain
A Personal Journey Beautiful Code
JSLint ,[object Object],[object Object],[object Object]
WARNING! JSLint will hurt your feelings.
Unlearning Is  Really Hard Perfectly Fine == Faulty
It's not ignorance does so much damage; it's knowin' so derned much that ain't so.  Josh Billings
The Very Best Part: Stability No new design errors  since 1999!
Coming Soon ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Safe Subsets ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
The Good Parts ,[object Object],[object Object],[object Object]
 

Mais conteúdo relacionado

Mais procurados

JavaScript - From Birth To Closure
JavaScript - From Birth To ClosureJavaScript - From Birth To Closure
JavaScript - From Birth To ClosureRobert Nyman
 
Java Building Blocks
Java Building BlocksJava Building Blocks
Java Building BlocksCate Huston
 
Programming with Java: the Basics
Programming with Java: the BasicsProgramming with Java: the Basics
Programming with Java: the BasicsJussi Pohjolainen
 
Stop wasting-time-by-applying-clean-code-principles
Stop wasting-time-by-applying-clean-code-principlesStop wasting-time-by-applying-clean-code-principles
Stop wasting-time-by-applying-clean-code-principlesEdorian
 
Good functional programming is good programming
Good functional programming is good programmingGood functional programming is good programming
Good functional programming is good programmingkenbot
 
JS Fest 2018. Douglas Crockford. The Better Parts
JS Fest 2018. Douglas Crockford. The Better PartsJS Fest 2018. Douglas Crockford. The Better Parts
JS Fest 2018. Douglas Crockford. The Better PartsJSFestUA
 
Save time by applying clean code principles
Save time by applying clean code principlesSave time by applying clean code principles
Save time by applying clean code principlesEdorian
 
Objects, Testing, and Responsibility
Objects, Testing, and ResponsibilityObjects, Testing, and Responsibility
Objects, Testing, and Responsibilitymachuga
 
Exploring Ceylon with Gavin King - JUG BB Talk - Belrin 2014
Exploring Ceylon with Gavin King - JUG BB Talk - Belrin 2014Exploring Ceylon with Gavin King - JUG BB Talk - Belrin 2014
Exploring Ceylon with Gavin King - JUG BB Talk - Belrin 2014hwilming
 
Effective Scala: Programming Patterns
Effective Scala: Programming PatternsEffective Scala: Programming Patterns
Effective Scala: Programming PatternsVasil Remeniuk
 
A Deeper look into Javascript Basics
A Deeper look into Javascript BasicsA Deeper look into Javascript Basics
A Deeper look into Javascript BasicsMindfire Solutions
 
Flow or Type - how to React to that?
Flow or Type - how to React to that?Flow or Type - how to React to that?
Flow or Type - how to React to that?Krešimir Antolić
 
Tools for the Toolmakers
Tools for the ToolmakersTools for the Toolmakers
Tools for the ToolmakersCaleb Callaway
 
Building maintainable javascript applications
Building maintainable javascript applicationsBuilding maintainable javascript applications
Building maintainable javascript applicationsequisodie
 
Object Oriented Design Patterns for PHP
Object Oriented Design Patterns for PHPObject Oriented Design Patterns for PHP
Object Oriented Design Patterns for PHPRobertGonzalez
 

Mais procurados (20)

JavaScript - From Birth To Closure
JavaScript - From Birth To ClosureJavaScript - From Birth To Closure
JavaScript - From Birth To Closure
 
Java Building Blocks
Java Building BlocksJava Building Blocks
Java Building Blocks
 
Groovy Programming Language
Groovy Programming LanguageGroovy Programming Language
Groovy Programming Language
 
Programming with Java: the Basics
Programming with Java: the BasicsProgramming with Java: the Basics
Programming with Java: the Basics
 
JavaScript Needn't Hurt!
JavaScript Needn't Hurt!JavaScript Needn't Hurt!
JavaScript Needn't Hurt!
 
Stop wasting-time-by-applying-clean-code-principles
Stop wasting-time-by-applying-clean-code-principlesStop wasting-time-by-applying-clean-code-principles
Stop wasting-time-by-applying-clean-code-principles
 
Good functional programming is good programming
Good functional programming is good programmingGood functional programming is good programming
Good functional programming is good programming
 
pebble - Building apps on pebble
pebble - Building apps on pebblepebble - Building apps on pebble
pebble - Building apps on pebble
 
JS Fest 2018. Douglas Crockford. The Better Parts
JS Fest 2018. Douglas Crockford. The Better PartsJS Fest 2018. Douglas Crockford. The Better Parts
JS Fest 2018. Douglas Crockford. The Better Parts
 
Dart programming language
Dart programming languageDart programming language
Dart programming language
 
Save time by applying clean code principles
Save time by applying clean code principlesSave time by applying clean code principles
Save time by applying clean code principles
 
Objects, Testing, and Responsibility
Objects, Testing, and ResponsibilityObjects, Testing, and Responsibility
Objects, Testing, and Responsibility
 
Exploring Ceylon with Gavin King - JUG BB Talk - Belrin 2014
Exploring Ceylon with Gavin King - JUG BB Talk - Belrin 2014Exploring Ceylon with Gavin King - JUG BB Talk - Belrin 2014
Exploring Ceylon with Gavin King - JUG BB Talk - Belrin 2014
 
Effective Scala: Programming Patterns
Effective Scala: Programming PatternsEffective Scala: Programming Patterns
Effective Scala: Programming Patterns
 
A Deeper look into Javascript Basics
A Deeper look into Javascript BasicsA Deeper look into Javascript Basics
A Deeper look into Javascript Basics
 
Exploring Kotlin
Exploring KotlinExploring Kotlin
Exploring Kotlin
 
Flow or Type - how to React to that?
Flow or Type - how to React to that?Flow or Type - how to React to that?
Flow or Type - how to React to that?
 
Tools for the Toolmakers
Tools for the ToolmakersTools for the Toolmakers
Tools for the Toolmakers
 
Building maintainable javascript applications
Building maintainable javascript applicationsBuilding maintainable javascript applications
Building maintainable javascript applications
 
Object Oriented Design Patterns for PHP
Object Oriented Design Patterns for PHPObject Oriented Design Patterns for PHP
Object Oriented Design Patterns for PHP
 

Semelhante a Goodparts

Section 8 Programming Style and Your Brain: Douglas Crockford
Section 8 Programming Style and Your Brain: Douglas CrockfordSection 8 Programming Style and Your Brain: Douglas Crockford
Section 8 Programming Style and Your Brain: Douglas Crockfordjaxconf
 
Douglas Crockford - Programming Style and Your Brain
Douglas Crockford - Programming Style and Your BrainDouglas Crockford - Programming Style and Your Brain
Douglas Crockford - Programming Style and Your BrainWeb Directions
 
JavaScript: Core Part
JavaScript: Core PartJavaScript: Core Part
JavaScript: Core Part維佋 唐
 
2007 09 10 Fzi Training Groovy Grails V Ws
2007 09 10 Fzi Training Groovy Grails V Ws2007 09 10 Fzi Training Groovy Grails V Ws
2007 09 10 Fzi Training Groovy Grails V Wsloffenauer
 
Go Beyond Higher Order Functions: A Journey into Functional Programming
Go Beyond Higher Order Functions: A Journey into Functional ProgrammingGo Beyond Higher Order Functions: A Journey into Functional Programming
Go Beyond Higher Order Functions: A Journey into Functional ProgrammingLex Sheehan
 
Javascript quiz. Questions to ask when recruiting developers.
Javascript quiz. Questions to ask when recruiting developers.Javascript quiz. Questions to ask when recruiting developers.
Javascript quiz. Questions to ask when recruiting developers.Alberto Naranjo
 
Dealing with Legacy Perl Code - Peter Scott
Dealing with Legacy Perl Code - Peter ScottDealing with Legacy Perl Code - Peter Scott
Dealing with Legacy Perl Code - Peter ScottO'Reilly Media
 
Node.js: CAMTA Presentation
Node.js: CAMTA PresentationNode.js: CAMTA Presentation
Node.js: CAMTA PresentationRob Tweed
 
Journey To The Front End World - Part3 - The Machine
Journey To The Front End World - Part3 - The MachineJourney To The Front End World - Part3 - The Machine
Journey To The Front End World - Part3 - The MachineIrfan Maulana
 
JavaScript For CSharp Developer
JavaScript For CSharp DeveloperJavaScript For CSharp Developer
JavaScript For CSharp DeveloperSarvesh Kushwaha
 
Questioning the status quo
Questioning the status quoQuestioning the status quo
Questioning the status quoIvano Pagano
 
Ajax and JavaScript Bootcamp
Ajax and JavaScript BootcampAjax and JavaScript Bootcamp
Ajax and JavaScript BootcampAndreCharland
 
Java Intro
Java IntroJava Intro
Java Introbackdoor
 
Your Library Sucks, and why you should use it.
Your Library Sucks, and why you should use it.Your Library Sucks, and why you should use it.
Your Library Sucks, and why you should use it.Peter Higgins
 

Semelhante a Goodparts (20)

"Javascript" por Tiago Rodrigues
"Javascript" por Tiago Rodrigues"Javascript" por Tiago Rodrigues
"Javascript" por Tiago Rodrigues
 
Section 8 Programming Style and Your Brain: Douglas Crockford
Section 8 Programming Style and Your Brain: Douglas CrockfordSection 8 Programming Style and Your Brain: Douglas Crockford
Section 8 Programming Style and Your Brain: Douglas Crockford
 
Douglas Crockford - Programming Style and Your Brain
Douglas Crockford - Programming Style and Your BrainDouglas Crockford - Programming Style and Your Brain
Douglas Crockford - Programming Style and Your Brain
 
Javascript status 2016
Javascript status 2016Javascript status 2016
Javascript status 2016
 
JavaScript Neednt Hurt - JavaBin talk
JavaScript Neednt Hurt - JavaBin talkJavaScript Neednt Hurt - JavaBin talk
JavaScript Neednt Hurt - JavaBin talk
 
All of Javascript
All of JavascriptAll of Javascript
All of Javascript
 
JavaScript: Core Part
JavaScript: Core PartJavaScript: Core Part
JavaScript: Core Part
 
2007 09 10 Fzi Training Groovy Grails V Ws
2007 09 10 Fzi Training Groovy Grails V Ws2007 09 10 Fzi Training Groovy Grails V Ws
2007 09 10 Fzi Training Groovy Grails V Ws
 
All of javascript
All of javascriptAll of javascript
All of javascript
 
Go Beyond Higher Order Functions: A Journey into Functional Programming
Go Beyond Higher Order Functions: A Journey into Functional ProgrammingGo Beyond Higher Order Functions: A Journey into Functional Programming
Go Beyond Higher Order Functions: A Journey into Functional Programming
 
Javascript quiz. Questions to ask when recruiting developers.
Javascript quiz. Questions to ask when recruiting developers.Javascript quiz. Questions to ask when recruiting developers.
Javascript quiz. Questions to ask when recruiting developers.
 
Dealing with Legacy Perl Code - Peter Scott
Dealing with Legacy Perl Code - Peter ScottDealing with Legacy Perl Code - Peter Scott
Dealing with Legacy Perl Code - Peter Scott
 
Node.js: CAMTA Presentation
Node.js: CAMTA PresentationNode.js: CAMTA Presentation
Node.js: CAMTA Presentation
 
Journey To The Front End World - Part3 - The Machine
Journey To The Front End World - Part3 - The MachineJourney To The Front End World - Part3 - The Machine
Journey To The Front End World - Part3 - The Machine
 
Javascript
JavascriptJavascript
Javascript
 
JavaScript For CSharp Developer
JavaScript For CSharp DeveloperJavaScript For CSharp Developer
JavaScript For CSharp Developer
 
Questioning the status quo
Questioning the status quoQuestioning the status quo
Questioning the status quo
 
Ajax and JavaScript Bootcamp
Ajax and JavaScript BootcampAjax and JavaScript Bootcamp
Ajax and JavaScript Bootcamp
 
Java Intro
Java IntroJava Intro
Java Intro
 
Your Library Sucks, and why you should use it.
Your Library Sucks, and why you should use it.Your Library Sucks, and why you should use it.
Your Library Sucks, and why you should use it.
 

Último

ASRock Industrial FDO Solutions in Action for Industrial Edge AI _ Kenny at A...
ASRock Industrial FDO Solutions in Action for Industrial Edge AI _ Kenny at A...ASRock Industrial FDO Solutions in Action for Industrial Edge AI _ Kenny at A...
ASRock Industrial FDO Solutions in Action for Industrial Edge AI _ Kenny at A...FIDO Alliance
 
ECS 2024 Teams Premium - Pretty Secure
ECS 2024   Teams Premium - Pretty SecureECS 2024   Teams Premium - Pretty Secure
ECS 2024 Teams Premium - Pretty SecureFemke de Vroome
 
Intro in Product Management - Коротко про професію продакт менеджера
Intro in Product Management - Коротко про професію продакт менеджераIntro in Product Management - Коротко про професію продакт менеджера
Intro in Product Management - Коротко про професію продакт менеджераMark Opanasiuk
 
IESVE for Early Stage Design and Planning
IESVE for Early Stage Design and PlanningIESVE for Early Stage Design and Planning
IESVE for Early Stage Design and PlanningIES VE
 
Choosing the Right FDO Deployment Model for Your Application _ Geoffrey at In...
Choosing the Right FDO Deployment Model for Your Application _ Geoffrey at In...Choosing the Right FDO Deployment Model for Your Application _ Geoffrey at In...
Choosing the Right FDO Deployment Model for Your Application _ Geoffrey at In...FIDO Alliance
 
Simplified FDO Manufacturing Flow with TPMs _ Liam at Infineon.pdf
Simplified FDO Manufacturing Flow with TPMs _ Liam at Infineon.pdfSimplified FDO Manufacturing Flow with TPMs _ Liam at Infineon.pdf
Simplified FDO Manufacturing Flow with TPMs _ Liam at Infineon.pdfFIDO Alliance
 
The UX of Automation by AJ King, Senior UX Researcher, Ocado
The UX of Automation by AJ King, Senior UX Researcher, OcadoThe UX of Automation by AJ King, Senior UX Researcher, Ocado
The UX of Automation by AJ King, Senior UX Researcher, OcadoUXDXConf
 
Salesforce Adoption – Metrics, Methods, and Motivation, Antone Kom
Salesforce Adoption – Metrics, Methods, and Motivation, Antone KomSalesforce Adoption – Metrics, Methods, and Motivation, Antone Kom
Salesforce Adoption – Metrics, Methods, and Motivation, Antone KomCzechDreamin
 
Strategic AI Integration in Engineering Teams
Strategic AI Integration in Engineering TeamsStrategic AI Integration in Engineering Teams
Strategic AI Integration in Engineering TeamsUXDXConf
 
WebAssembly is Key to Better LLM Performance
WebAssembly is Key to Better LLM PerformanceWebAssembly is Key to Better LLM Performance
WebAssembly is Key to Better LLM PerformanceSamy Fodil
 
Unpacking Value Delivery - Agile Oxford Meetup - May 2024.pptx
Unpacking Value Delivery - Agile Oxford Meetup - May 2024.pptxUnpacking Value Delivery - Agile Oxford Meetup - May 2024.pptx
Unpacking Value Delivery - Agile Oxford Meetup - May 2024.pptxDavid Michel
 
WSO2CONMay2024OpenSourceConferenceDebrief.pptx
WSO2CONMay2024OpenSourceConferenceDebrief.pptxWSO2CONMay2024OpenSourceConferenceDebrief.pptx
WSO2CONMay2024OpenSourceConferenceDebrief.pptxJennifer Lim
 
Buy Epson EcoTank L3210 Colour Printer Online.pptx
Buy Epson EcoTank L3210 Colour Printer Online.pptxBuy Epson EcoTank L3210 Colour Printer Online.pptx
Buy Epson EcoTank L3210 Colour Printer Online.pptxEasyPrinterHelp
 
Buy Epson EcoTank L3210 Colour Printer Online.pdf
Buy Epson EcoTank L3210 Colour Printer Online.pdfBuy Epson EcoTank L3210 Colour Printer Online.pdf
Buy Epson EcoTank L3210 Colour Printer Online.pdfEasyPrinterHelp
 
Structuring Teams and Portfolios for Success
Structuring Teams and Portfolios for SuccessStructuring Teams and Portfolios for Success
Structuring Teams and Portfolios for SuccessUXDXConf
 
A Business-Centric Approach to Design System Strategy
A Business-Centric Approach to Design System StrategyA Business-Centric Approach to Design System Strategy
A Business-Centric Approach to Design System StrategyUXDXConf
 
Extensible Python: Robustness through Addition - PyCon 2024
Extensible Python: Robustness through Addition - PyCon 2024Extensible Python: Robustness through Addition - PyCon 2024
Extensible Python: Robustness through Addition - PyCon 2024Patrick Viafore
 
AI revolution and Salesforce, Jiří Karpíšek
AI revolution and Salesforce, Jiří KarpíšekAI revolution and Salesforce, Jiří Karpíšek
AI revolution and Salesforce, Jiří KarpíšekCzechDreamin
 
Speed Wins: From Kafka to APIs in Minutes
Speed Wins: From Kafka to APIs in MinutesSpeed Wins: From Kafka to APIs in Minutes
Speed Wins: From Kafka to APIs in Minutesconfluent
 
Designing for Hardware Accessibility at Comcast
Designing for Hardware Accessibility at ComcastDesigning for Hardware Accessibility at Comcast
Designing for Hardware Accessibility at ComcastUXDXConf
 

Último (20)

ASRock Industrial FDO Solutions in Action for Industrial Edge AI _ Kenny at A...
ASRock Industrial FDO Solutions in Action for Industrial Edge AI _ Kenny at A...ASRock Industrial FDO Solutions in Action for Industrial Edge AI _ Kenny at A...
ASRock Industrial FDO Solutions in Action for Industrial Edge AI _ Kenny at A...
 
ECS 2024 Teams Premium - Pretty Secure
ECS 2024   Teams Premium - Pretty SecureECS 2024   Teams Premium - Pretty Secure
ECS 2024 Teams Premium - Pretty Secure
 
Intro in Product Management - Коротко про професію продакт менеджера
Intro in Product Management - Коротко про професію продакт менеджераIntro in Product Management - Коротко про професію продакт менеджера
Intro in Product Management - Коротко про професію продакт менеджера
 
IESVE for Early Stage Design and Planning
IESVE for Early Stage Design and PlanningIESVE for Early Stage Design and Planning
IESVE for Early Stage Design and Planning
 
Choosing the Right FDO Deployment Model for Your Application _ Geoffrey at In...
Choosing the Right FDO Deployment Model for Your Application _ Geoffrey at In...Choosing the Right FDO Deployment Model for Your Application _ Geoffrey at In...
Choosing the Right FDO Deployment Model for Your Application _ Geoffrey at In...
 
Simplified FDO Manufacturing Flow with TPMs _ Liam at Infineon.pdf
Simplified FDO Manufacturing Flow with TPMs _ Liam at Infineon.pdfSimplified FDO Manufacturing Flow with TPMs _ Liam at Infineon.pdf
Simplified FDO Manufacturing Flow with TPMs _ Liam at Infineon.pdf
 
The UX of Automation by AJ King, Senior UX Researcher, Ocado
The UX of Automation by AJ King, Senior UX Researcher, OcadoThe UX of Automation by AJ King, Senior UX Researcher, Ocado
The UX of Automation by AJ King, Senior UX Researcher, Ocado
 
Salesforce Adoption – Metrics, Methods, and Motivation, Antone Kom
Salesforce Adoption – Metrics, Methods, and Motivation, Antone KomSalesforce Adoption – Metrics, Methods, and Motivation, Antone Kom
Salesforce Adoption – Metrics, Methods, and Motivation, Antone Kom
 
Strategic AI Integration in Engineering Teams
Strategic AI Integration in Engineering TeamsStrategic AI Integration in Engineering Teams
Strategic AI Integration in Engineering Teams
 
WebAssembly is Key to Better LLM Performance
WebAssembly is Key to Better LLM PerformanceWebAssembly is Key to Better LLM Performance
WebAssembly is Key to Better LLM Performance
 
Unpacking Value Delivery - Agile Oxford Meetup - May 2024.pptx
Unpacking Value Delivery - Agile Oxford Meetup - May 2024.pptxUnpacking Value Delivery - Agile Oxford Meetup - May 2024.pptx
Unpacking Value Delivery - Agile Oxford Meetup - May 2024.pptx
 
WSO2CONMay2024OpenSourceConferenceDebrief.pptx
WSO2CONMay2024OpenSourceConferenceDebrief.pptxWSO2CONMay2024OpenSourceConferenceDebrief.pptx
WSO2CONMay2024OpenSourceConferenceDebrief.pptx
 
Buy Epson EcoTank L3210 Colour Printer Online.pptx
Buy Epson EcoTank L3210 Colour Printer Online.pptxBuy Epson EcoTank L3210 Colour Printer Online.pptx
Buy Epson EcoTank L3210 Colour Printer Online.pptx
 
Buy Epson EcoTank L3210 Colour Printer Online.pdf
Buy Epson EcoTank L3210 Colour Printer Online.pdfBuy Epson EcoTank L3210 Colour Printer Online.pdf
Buy Epson EcoTank L3210 Colour Printer Online.pdf
 
Structuring Teams and Portfolios for Success
Structuring Teams and Portfolios for SuccessStructuring Teams and Portfolios for Success
Structuring Teams and Portfolios for Success
 
A Business-Centric Approach to Design System Strategy
A Business-Centric Approach to Design System StrategyA Business-Centric Approach to Design System Strategy
A Business-Centric Approach to Design System Strategy
 
Extensible Python: Robustness through Addition - PyCon 2024
Extensible Python: Robustness through Addition - PyCon 2024Extensible Python: Robustness through Addition - PyCon 2024
Extensible Python: Robustness through Addition - PyCon 2024
 
AI revolution and Salesforce, Jiří Karpíšek
AI revolution and Salesforce, Jiří KarpíšekAI revolution and Salesforce, Jiří Karpíšek
AI revolution and Salesforce, Jiří Karpíšek
 
Speed Wins: From Kafka to APIs in Minutes
Speed Wins: From Kafka to APIs in MinutesSpeed Wins: From Kafka to APIs in Minutes
Speed Wins: From Kafka to APIs in Minutes
 
Designing for Hardware Accessibility at Comcast
Designing for Hardware Accessibility at ComcastDesigning for Hardware Accessibility at Comcast
Designing for Hardware Accessibility at Comcast
 

Goodparts

  • 1. JavaScript: The Good Parts Douglas Crockford Yahoo! Inc. http://www.crockford.com/codecamp/
  • 2. The World's Most Popular Programming Language
  • 3. The World's Most Popular Programming Language The World's Most Unpopular Programming Language
  • 4. A language of many contrasts.
  • 5. The broadest range of programmer skills of any programming language. From computer scientists to cut-n-pasters and everyone in between.
  • 6. It is the language that people use without bothering to learn it first.
  • 7.
  • 8. Hidden under a huge steaming pile of good intentions and blunders is an elegant, expressive programming language. JavaScript has good parts.
  • 9. JavaScript is succeeding very well in an environment where Java was a total failure.
  • 10.
  • 11.
  • 12.
  • 13.
  • 14.
  • 15.
  • 16.
  • 17.
  • 18.
  • 19.
  • 20.
  • 21.
  • 22.
  • 23.
  • 24.
  • 25.
  • 26.
  • 27.
  • 28. Module pattern is easily transformed into a powerful constructor pattern.
  • 29.
  • 30.
  • 31.
  • 32.
  • 33.
  • 34.
  • 35.
  • 36.
  • 37.
  • 38.
  • 39.
  • 40.
  • 41.
  • 42.
  • 43.
  • 44.
  • 45.
  • 46.
  • 47.
  • 48.
  • 50. A Personal Journey Beautiful Code
  • 51.
  • 52. WARNING! JSLint will hurt your feelings.
  • 53. Unlearning Is Really Hard Perfectly Fine == Faulty
  • 54. It's not ignorance does so much damage; it's knowin' so derned much that ain't so. Josh Billings
  • 55. The Very Best Part: Stability No new design errors since 1999!
  • 56.
  • 57.
  • 58.
  • 59.