SlideShare a Scribd company logo
Asynchrony on the web
Asynchrony on the web
Asynchrony of the web
Wekoslav Stefanovski
Head of Development in Sourcico Macedonia
Coding professionally since last century
I love programming, I love programmers
Long and fruitful love / hate relationship with JavaScript
Prodigiously lazy, so very few slides
>whoami
What is asynchrony?
Why is the web asynchronous?
Making a simple timer
Making a better timer
Agenda
Doing a single thing
Not starting anything else before the current thing is completely done
Code execution is line-by-line
Possible to reason about
Slow as molasses, and unresponsive as much
What is synchrony?
Distributed by definition
Single threaded execution as a feature
Never ever blocking event loop
Hard to reason about
Unwieldy to program with
Why is the web asynchronous?
Live Coding Time
Asynchrony on the web

More Related Content

What's hot

The State of the Web - Helsinki meetup
The State of the Web - Helsinki meetupThe State of the Web - Helsinki meetup
The State of the Web - Helsinki meetup
Christian Heilmann
 
Qubulus dev group
Qubulus dev groupQubulus dev group
Qubulus dev group
QUBULUS
 
Uday Dahale
Uday DahaleUday Dahale
Uday Dahale
udaydahale
 
Rapid Prototyping With J Query
Rapid Prototyping With J QueryRapid Prototyping With J Query
Rapid Prototyping With J Query
Bootstrap
 
Angular – Say Goodbye to Javascript Soup
Angular – Say Goodbye to Javascript SoupAngular – Say Goodbye to Javascript Soup
Angular – Say Goodbye to Javascript Soup
Graeme Foster
 
WebAssembly: Digging a bit deeper
WebAssembly: Digging a bit deeperWebAssembly: Digging a bit deeper
WebAssembly: Digging a bit deeper
All Things Open
 
Pownce Lessons Learned
Pownce Lessons LearnedPownce Lessons Learned
Pownce Lessons Learned
leahculver
 
Jump start php environment
Jump start php environmentJump start php environment
Jump start php environment
Adrian Sandu
 
Whatever happened to Progressive Enhancement?
Whatever happened to Progressive Enhancement?Whatever happened to Progressive Enhancement?
Whatever happened to Progressive Enhancement?
Cole Henley
 
MailXpert API bundle
MailXpert API bundleMailXpert API bundle
MailXpert API bundle
Jean-Christophe Cuvelier
 
node.js in action
node.js in actionnode.js in action
node.js in action
Karan Misra
 
How to manage your web agency as a client
How to manage your web agency as a clientHow to manage your web agency as a client
How to manage your web agency as a client
Jean-Christophe Cuvelier
 
The Mysteries Of JavaScript-Fu (@media SF Edition)
The Mysteries Of JavaScript-Fu (@media SF Edition)The Mysteries Of JavaScript-Fu (@media SF Edition)
The Mysteries Of JavaScript-Fu (@media SF Edition)
danwrong
 
Moore vs. May - everything is faster and better: we can fix that
Moore vs. May - everything is faster and better: we can fix thatMoore vs. May - everything is faster and better: we can fix that
Moore vs. May - everything is faster and better: we can fix that
Christian Heilmann
 
It's Not Just a Phase: Learning To Love Full Stack Development
It's Not Just a Phase: Learning To Love Full Stack DevelopmentIt's Not Just a Phase: Learning To Love Full Stack Development
It's Not Just a Phase: Learning To Love Full Stack Development
Alexis Ewing-Moody
 
Getting Started: The Installation
Getting Started: The InstallationGetting Started: The Installation
Getting Started: The Installation
Ibrahim Abdel Fattah Mohamed
 
Web design services
Web design servicesWeb design services
Web design services
SoftProdigy - We know software!
 
Conclusion Of The Course
Conclusion Of The CourseConclusion Of The Course
Conclusion Of The Course
Reema
 
Performance Optimization for Mobile Web | Fresh Tilled Soil
Performance Optimization for Mobile Web | Fresh Tilled SoilPerformance Optimization for Mobile Web | Fresh Tilled Soil
Performance Optimization for Mobile Web | Fresh Tilled Soil
Fresh Tilled Soil
 
Google Developers Group Cloud Los Angeles, Progressive Web Applications by Ta...
Google Developers Group Cloud Los Angeles, Progressive Web Applications by Ta...Google Developers Group Cloud Los Angeles, Progressive Web Applications by Ta...
Google Developers Group Cloud Los Angeles, Progressive Web Applications by Ta...
Marie Smith
 

What's hot (20)

The State of the Web - Helsinki meetup
The State of the Web - Helsinki meetupThe State of the Web - Helsinki meetup
The State of the Web - Helsinki meetup
 
Qubulus dev group
Qubulus dev groupQubulus dev group
Qubulus dev group
 
Uday Dahale
Uday DahaleUday Dahale
Uday Dahale
 
Rapid Prototyping With J Query
Rapid Prototyping With J QueryRapid Prototyping With J Query
Rapid Prototyping With J Query
 
Angular – Say Goodbye to Javascript Soup
Angular – Say Goodbye to Javascript SoupAngular – Say Goodbye to Javascript Soup
Angular – Say Goodbye to Javascript Soup
 
WebAssembly: Digging a bit deeper
WebAssembly: Digging a bit deeperWebAssembly: Digging a bit deeper
WebAssembly: Digging a bit deeper
 
Pownce Lessons Learned
Pownce Lessons LearnedPownce Lessons Learned
Pownce Lessons Learned
 
Jump start php environment
Jump start php environmentJump start php environment
Jump start php environment
 
Whatever happened to Progressive Enhancement?
Whatever happened to Progressive Enhancement?Whatever happened to Progressive Enhancement?
Whatever happened to Progressive Enhancement?
 
MailXpert API bundle
MailXpert API bundleMailXpert API bundle
MailXpert API bundle
 
node.js in action
node.js in actionnode.js in action
node.js in action
 
How to manage your web agency as a client
How to manage your web agency as a clientHow to manage your web agency as a client
How to manage your web agency as a client
 
The Mysteries Of JavaScript-Fu (@media SF Edition)
The Mysteries Of JavaScript-Fu (@media SF Edition)The Mysteries Of JavaScript-Fu (@media SF Edition)
The Mysteries Of JavaScript-Fu (@media SF Edition)
 
Moore vs. May - everything is faster and better: we can fix that
Moore vs. May - everything is faster and better: we can fix thatMoore vs. May - everything is faster and better: we can fix that
Moore vs. May - everything is faster and better: we can fix that
 
It's Not Just a Phase: Learning To Love Full Stack Development
It's Not Just a Phase: Learning To Love Full Stack DevelopmentIt's Not Just a Phase: Learning To Love Full Stack Development
It's Not Just a Phase: Learning To Love Full Stack Development
 
Getting Started: The Installation
Getting Started: The InstallationGetting Started: The Installation
Getting Started: The Installation
 
Web design services
Web design servicesWeb design services
Web design services
 
Conclusion Of The Course
Conclusion Of The CourseConclusion Of The Course
Conclusion Of The Course
 
Performance Optimization for Mobile Web | Fresh Tilled Soil
Performance Optimization for Mobile Web | Fresh Tilled SoilPerformance Optimization for Mobile Web | Fresh Tilled Soil
Performance Optimization for Mobile Web | Fresh Tilled Soil
 
Google Developers Group Cloud Los Angeles, Progressive Web Applications by Ta...
Google Developers Group Cloud Los Angeles, Progressive Web Applications by Ta...Google Developers Group Cloud Los Angeles, Progressive Web Applications by Ta...
Google Developers Group Cloud Los Angeles, Progressive Web Applications by Ta...
 

More from Wekoslav Stefanovski

Make you a Redux for fun and profit!
Make you a Redux for fun and profit!Make you a Redux for fun and profit!
Make you a Redux for fun and profit!
Wekoslav Stefanovski
 
Blazor - C# for the web
Blazor - C# for the webBlazor - C# for the web
Blazor - C# for the web
Wekoslav Stefanovski
 
Servers? We don't need no stinking servers
Servers? We don't need no stinking serversServers? We don't need no stinking servers
Servers? We don't need no stinking servers
Wekoslav Stefanovski
 
Typescript Decorators
Typescript DecoratorsTypescript Decorators
Typescript Decorators
Wekoslav Stefanovski
 
Coding for the cloud - development of modern web applications
Coding for the cloud - development of modern web applicationsCoding for the cloud - development of modern web applications
Coding for the cloud - development of modern web applications
Wekoslav Stefanovski
 
Through Meteor to the stars - Developing full-stack SPA's with meteor.js
Through Meteor to the stars - Developing full-stack SPA's with meteor.jsThrough Meteor to the stars - Developing full-stack SPA's with meteor.js
Through Meteor to the stars - Developing full-stack SPA's with meteor.js
Wekoslav Stefanovski
 
TypeScript 1.6 - How I learned to Stop Worrying and Love JavaScript
TypeScript 1.6 - How I learned to Stop Worrying and Love JavaScriptTypeScript 1.6 - How I learned to Stop Worrying and Love JavaScript
TypeScript 1.6 - How I learned to Stop Worrying and Love JavaScript
Wekoslav Stefanovski
 
How to write bad code using C#
How to write bad code using C#How to write bad code using C#
How to write bad code using C#
Wekoslav Stefanovski
 
Garbage Collection .Net
Garbage Collection .NetGarbage Collection .Net
Garbage Collection .Net
Wekoslav Stefanovski
 
Testing your Single Page Application
Testing your Single Page ApplicationTesting your Single Page Application
Testing your Single Page Application
Wekoslav Stefanovski
 
Smoke and Mirrors - Reflection in C#
Smoke and Mirrors - Reflection in C#Smoke and Mirrors - Reflection in C#
Smoke and Mirrors - Reflection in C#
Wekoslav Stefanovski
 
TypeScript - Javascript done right
TypeScript - Javascript done rightTypeScript - Javascript done right
TypeScript - Javascript done right
Wekoslav Stefanovski
 
Entity Framework 5 - Code First
Entity Framework 5 - Code FirstEntity Framework 5 - Code First
Entity Framework 5 - Code First
Wekoslav Stefanovski
 
SOLID -Clean Code For Mere Mortals
SOLID -Clean Code For Mere MortalsSOLID -Clean Code For Mere Mortals
SOLID -Clean Code For Mere Mortals
Wekoslav Stefanovski
 

More from Wekoslav Stefanovski (14)

Make you a Redux for fun and profit!
Make you a Redux for fun and profit!Make you a Redux for fun and profit!
Make you a Redux for fun and profit!
 
Blazor - C# for the web
Blazor - C# for the webBlazor - C# for the web
Blazor - C# for the web
 
Servers? We don't need no stinking servers
Servers? We don't need no stinking serversServers? We don't need no stinking servers
Servers? We don't need no stinking servers
 
Typescript Decorators
Typescript DecoratorsTypescript Decorators
Typescript Decorators
 
Coding for the cloud - development of modern web applications
Coding for the cloud - development of modern web applicationsCoding for the cloud - development of modern web applications
Coding for the cloud - development of modern web applications
 
Through Meteor to the stars - Developing full-stack SPA's with meteor.js
Through Meteor to the stars - Developing full-stack SPA's with meteor.jsThrough Meteor to the stars - Developing full-stack SPA's with meteor.js
Through Meteor to the stars - Developing full-stack SPA's with meteor.js
 
TypeScript 1.6 - How I learned to Stop Worrying and Love JavaScript
TypeScript 1.6 - How I learned to Stop Worrying and Love JavaScriptTypeScript 1.6 - How I learned to Stop Worrying and Love JavaScript
TypeScript 1.6 - How I learned to Stop Worrying and Love JavaScript
 
How to write bad code using C#
How to write bad code using C#How to write bad code using C#
How to write bad code using C#
 
Garbage Collection .Net
Garbage Collection .NetGarbage Collection .Net
Garbage Collection .Net
 
Testing your Single Page Application
Testing your Single Page ApplicationTesting your Single Page Application
Testing your Single Page Application
 
Smoke and Mirrors - Reflection in C#
Smoke and Mirrors - Reflection in C#Smoke and Mirrors - Reflection in C#
Smoke and Mirrors - Reflection in C#
 
TypeScript - Javascript done right
TypeScript - Javascript done rightTypeScript - Javascript done right
TypeScript - Javascript done right
 
Entity Framework 5 - Code First
Entity Framework 5 - Code FirstEntity Framework 5 - Code First
Entity Framework 5 - Code First
 
SOLID -Clean Code For Mere Mortals
SOLID -Clean Code For Mere MortalsSOLID -Clean Code For Mere Mortals
SOLID -Clean Code For Mere Mortals
 

Recently uploaded

Understanding Threat Intelligence | What is Threat Intelligence
Understanding Threat Intelligence | What is Threat IntelligenceUnderstanding Threat Intelligence | What is Threat Intelligence
Understanding Threat Intelligence | What is Threat Intelligence
Lumiverse Solutions Pvt Ltd
 
Geolocation and Geofeed Implementation bdNOG18
Geolocation and Geofeed Implementation bdNOG18Geolocation and Geofeed Implementation bdNOG18
Geolocation and Geofeed Implementation bdNOG18
Bangladesh Network Operators Group
 
Network Security version1.0 - Module 3.pptx
Network Security version1.0 - Module 3.pptxNetwork Security version1.0 - Module 3.pptx
Network Security version1.0 - Module 3.pptx
Infotainmentforall
 
upgrade to zabbix-7 0 como atualiza lts1
upgrade to zabbix-7 0 como atualiza lts1upgrade to zabbix-7 0 como atualiza lts1
upgrade to zabbix-7 0 como atualiza lts1
diogolsew
 
Girls Call Mahipalpur 000XX00000 Provide Best And Top Girl Service And No1 in...
Girls Call Mahipalpur 000XX00000 Provide Best And Top Girl Service And No1 in...Girls Call Mahipalpur 000XX00000 Provide Best And Top Girl Service And No1 in...
Girls Call Mahipalpur 000XX00000 Provide Best And Top Girl Service And No1 in...
mahigarg2024#G05
 
202254.com香蕉影视,在线观看《我才不要和你做朋友呢》在线观看最新电影,香蕉影视在线观看《我才不要和你做朋友呢》在线观看高清电影
202254.com香蕉影视,在线观看《我才不要和你做朋友呢》在线观看最新电影,香蕉影视在线观看《我才不要和你做朋友呢》在线观看高清电影202254.com香蕉影视,在线观看《我才不要和你做朋友呢》在线观看最新电影,香蕉影视在线观看《我才不要和你做朋友呢》在线观看高清电影
202254.com香蕉影视,在线观看《我才不要和你做朋友呢》在线观看最新电影,香蕉影视在线观看《我才不要和你做朋友呢》在线观看高清电影
ffg01100
 
Female Service Girls Call Delhi 9873940964 Provide Best And Top Girl Service ...
Female Service Girls Call Delhi 9873940964 Provide Best And Top Girl Service ...Female Service Girls Call Delhi 9873940964 Provide Best And Top Girl Service ...
Female Service Girls Call Delhi 9873940964 Provide Best And Top Girl Service ...
elbertablack
 
Trump fist pump t shirts Trump fist pump t shirts
Trump fist pump t shirts Trump fist pump t shirtsTrump fist pump t shirts Trump fist pump t shirts
Trump fist pump t shirts Trump fist pump t shirts
exgf28
 
Saint Louis University diploma
Saint Louis University diplomaSaint Louis University diploma
Saint Louis University diploma
eufdev
 
Top 50 Telephone Conversation Sample Examples For IT Industries.pdf
Top 50 Telephone Conversation Sample Examples For IT Industries.pdfTop 50 Telephone Conversation Sample Examples For IT Industries.pdf
Top 50 Telephone Conversation Sample Examples For IT Industries.pdf
Krishna L
 
How God led me to DTS? Through many different signs and connections that I c...
How God led me to DTS? Through many different signs and connections that  I c...How God led me to DTS? Through many different signs and connections that  I c...
How God led me to DTS? Through many different signs and connections that I c...
AshishMohan57
 
Portugal Dreamin 24 - How to easily use an API with Flows
Portugal Dreamin 24  - How to easily use an API with FlowsPortugal Dreamin 24  - How to easily use an API with Flows
Portugal Dreamin 24 - How to easily use an API with Flows
Thierry TROUIN ☁
 
Open Source TCP or Netflow Log Server Using Graylog
Open Source TCP or Netflow Log Server Using GraylogOpen Source TCP or Netflow Log Server Using Graylog
Open Source TCP or Netflow Log Server Using Graylog
Bangladesh Network Operators Group
 
New York Institute of Technology degree Cert diploma offer
New York Institute of Technology degree Cert diploma offerNew York Institute of Technology degree Cert diploma offer
New York Institute of Technology degree Cert diploma offer
ubovu
 
Enhancing seamless access using TIGERfed
Enhancing seamless access using TIGERfedEnhancing seamless access using TIGERfed
Enhancing seamless access using TIGERfed
Bangladesh Network Operators Group
 
Week 1 - Pendidikan Pancasila - Gr 1.docx
Week 1 - Pendidikan Pancasila - Gr 1.docxWeek 1 - Pendidikan Pancasila - Gr 1.docx
Week 1 - Pendidikan Pancasila - Gr 1.docx
JunaManroe1
 
Use of Ontologies in Chemical Kinetic Database CHEMCONNECT
Use of Ontologies in Chemical Kinetic Database CHEMCONNECTUse of Ontologies in Chemical Kinetic Database CHEMCONNECT
Use of Ontologies in Chemical Kinetic Database CHEMCONNECT
Edward Blurock
 
Vip Girls Call ServiCe Chennai X00XXX00XX Tanisha Best High Class Chennai Ava...
Vip Girls Call ServiCe Chennai X00XXX00XX Tanisha Best High Class Chennai Ava...Vip Girls Call ServiCe Chennai X00XXX00XX Tanisha Best High Class Chennai Ava...
Vip Girls Call ServiCe Chennai X00XXX00XX Tanisha Best High Class Chennai Ava...
samyanvichadda
 
202254.com香蕉影视,沙丘2在线播放,沙丘2线上看,最新电影沙丘2在线,热门电影推荐,2024最新科幻片推荐。
202254.com香蕉影视,沙丘2在线播放,沙丘2线上看,最新电影沙丘2在线,热门电影推荐,2024最新科幻片推荐。202254.com香蕉影视,沙丘2在线播放,沙丘2线上看,最新电影沙丘2在线,热门电影推荐,2024最新科幻片推荐。
202254.com香蕉影视,沙丘2在线播放,沙丘2线上看,最新电影沙丘2在线,热门电影推荐,2024最新科幻片推荐。
yilin01100
 
Software Defined Networking, Concepts and Practical Implementations
Software Defined Networking, Concepts and Practical ImplementationsSoftware Defined Networking, Concepts and Practical Implementations
Software Defined Networking, Concepts and Practical Implementations
Bangladesh Network Operators Group
 

Recently uploaded (20)

Understanding Threat Intelligence | What is Threat Intelligence
Understanding Threat Intelligence | What is Threat IntelligenceUnderstanding Threat Intelligence | What is Threat Intelligence
Understanding Threat Intelligence | What is Threat Intelligence
 
Geolocation and Geofeed Implementation bdNOG18
Geolocation and Geofeed Implementation bdNOG18Geolocation and Geofeed Implementation bdNOG18
Geolocation and Geofeed Implementation bdNOG18
 
Network Security version1.0 - Module 3.pptx
Network Security version1.0 - Module 3.pptxNetwork Security version1.0 - Module 3.pptx
Network Security version1.0 - Module 3.pptx
 
upgrade to zabbix-7 0 como atualiza lts1
upgrade to zabbix-7 0 como atualiza lts1upgrade to zabbix-7 0 como atualiza lts1
upgrade to zabbix-7 0 como atualiza lts1
 
Girls Call Mahipalpur 000XX00000 Provide Best And Top Girl Service And No1 in...
Girls Call Mahipalpur 000XX00000 Provide Best And Top Girl Service And No1 in...Girls Call Mahipalpur 000XX00000 Provide Best And Top Girl Service And No1 in...
Girls Call Mahipalpur 000XX00000 Provide Best And Top Girl Service And No1 in...
 
202254.com香蕉影视,在线观看《我才不要和你做朋友呢》在线观看最新电影,香蕉影视在线观看《我才不要和你做朋友呢》在线观看高清电影
202254.com香蕉影视,在线观看《我才不要和你做朋友呢》在线观看最新电影,香蕉影视在线观看《我才不要和你做朋友呢》在线观看高清电影202254.com香蕉影视,在线观看《我才不要和你做朋友呢》在线观看最新电影,香蕉影视在线观看《我才不要和你做朋友呢》在线观看高清电影
202254.com香蕉影视,在线观看《我才不要和你做朋友呢》在线观看最新电影,香蕉影视在线观看《我才不要和你做朋友呢》在线观看高清电影
 
Female Service Girls Call Delhi 9873940964 Provide Best And Top Girl Service ...
Female Service Girls Call Delhi 9873940964 Provide Best And Top Girl Service ...Female Service Girls Call Delhi 9873940964 Provide Best And Top Girl Service ...
Female Service Girls Call Delhi 9873940964 Provide Best And Top Girl Service ...
 
Trump fist pump t shirts Trump fist pump t shirts
Trump fist pump t shirts Trump fist pump t shirtsTrump fist pump t shirts Trump fist pump t shirts
Trump fist pump t shirts Trump fist pump t shirts
 
Saint Louis University diploma
Saint Louis University diplomaSaint Louis University diploma
Saint Louis University diploma
 
Top 50 Telephone Conversation Sample Examples For IT Industries.pdf
Top 50 Telephone Conversation Sample Examples For IT Industries.pdfTop 50 Telephone Conversation Sample Examples For IT Industries.pdf
Top 50 Telephone Conversation Sample Examples For IT Industries.pdf
 
How God led me to DTS? Through many different signs and connections that I c...
How God led me to DTS? Through many different signs and connections that  I c...How God led me to DTS? Through many different signs and connections that  I c...
How God led me to DTS? Through many different signs and connections that I c...
 
Portugal Dreamin 24 - How to easily use an API with Flows
Portugal Dreamin 24  - How to easily use an API with FlowsPortugal Dreamin 24  - How to easily use an API with Flows
Portugal Dreamin 24 - How to easily use an API with Flows
 
Open Source TCP or Netflow Log Server Using Graylog
Open Source TCP or Netflow Log Server Using GraylogOpen Source TCP or Netflow Log Server Using Graylog
Open Source TCP or Netflow Log Server Using Graylog
 
New York Institute of Technology degree Cert diploma offer
New York Institute of Technology degree Cert diploma offerNew York Institute of Technology degree Cert diploma offer
New York Institute of Technology degree Cert diploma offer
 
Enhancing seamless access using TIGERfed
Enhancing seamless access using TIGERfedEnhancing seamless access using TIGERfed
Enhancing seamless access using TIGERfed
 
Week 1 - Pendidikan Pancasila - Gr 1.docx
Week 1 - Pendidikan Pancasila - Gr 1.docxWeek 1 - Pendidikan Pancasila - Gr 1.docx
Week 1 - Pendidikan Pancasila - Gr 1.docx
 
Use of Ontologies in Chemical Kinetic Database CHEMCONNECT
Use of Ontologies in Chemical Kinetic Database CHEMCONNECTUse of Ontologies in Chemical Kinetic Database CHEMCONNECT
Use of Ontologies in Chemical Kinetic Database CHEMCONNECT
 
Vip Girls Call ServiCe Chennai X00XXX00XX Tanisha Best High Class Chennai Ava...
Vip Girls Call ServiCe Chennai X00XXX00XX Tanisha Best High Class Chennai Ava...Vip Girls Call ServiCe Chennai X00XXX00XX Tanisha Best High Class Chennai Ava...
Vip Girls Call ServiCe Chennai X00XXX00XX Tanisha Best High Class Chennai Ava...
 
202254.com香蕉影视,沙丘2在线播放,沙丘2线上看,最新电影沙丘2在线,热门电影推荐,2024最新科幻片推荐。
202254.com香蕉影视,沙丘2在线播放,沙丘2线上看,最新电影沙丘2在线,热门电影推荐,2024最新科幻片推荐。202254.com香蕉影视,沙丘2在线播放,沙丘2线上看,最新电影沙丘2在线,热门电影推荐,2024最新科幻片推荐。
202254.com香蕉影视,沙丘2在线播放,沙丘2线上看,最新电影沙丘2在线,热门电影推荐,2024最新科幻片推荐。
 
Software Defined Networking, Concepts and Practical Implementations
Software Defined Networking, Concepts and Practical ImplementationsSoftware Defined Networking, Concepts and Practical Implementations
Software Defined Networking, Concepts and Practical Implementations
 

Asynchrony on the web

  • 3. Asynchrony of the web Wekoslav Stefanovski
  • 4. Head of Development in Sourcico Macedonia Coding professionally since last century I love programming, I love programmers Long and fruitful love / hate relationship with JavaScript Prodigiously lazy, so very few slides >whoami
  • 5. What is asynchrony? Why is the web asynchronous? Making a simple timer Making a better timer Agenda
  • 6. Doing a single thing Not starting anything else before the current thing is completely done Code execution is line-by-line Possible to reason about Slow as molasses, and unresponsive as much What is synchrony?
  • 7. Distributed by definition Single threaded execution as a feature Never ever blocking event loop Hard to reason about Unwieldy to program with Why is the web asynchronous?