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JavaScript
Hogyan készül
HWSW free! 

2018 szeptember 12
@_Nec - https://nec.is
Szabolcsi-Toth

Szabolcs
@_Nec
https://nec.is
@_Nec - https://nec.is
@_Nec - https://nec.is
@_Nec - https://nec.is
@_Nec - https://nec.is
?
@_Nec - https://nec.is
@_Nec - https://nec.is
@_Nec - https://nec.is
@_Nec - https://nec.is
@_Nec - https://nec.is
ECMA
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ECMA
European 

Computer 

Manufacturers 

Association
@_Nec - https://nec.is
ECMA
1961
IT Szabványosítás
Üzleti alapokra helyezve
Nemzetközi vállalatok a tagjai
@_Nec - https://nec.is
ECMA
ECMA-107 - FAT12/FAT16 file system
ECMA-119 - CD-ROM volume and
filestructure
ECMA-334 - C# Language
ECMA-404 - JSON
@_Nec - https://nec.is
ECMA-262
Nemzetközi Szabvány
“ECMAScript”
JavaScript = ECMAScript
Implementáció
@_Nec - https://nec.is
🔥
🌩
🌪
1998
2
1999
3
2009
5
2011
5.1
2015
6
🦖
2015
2016
2016
2017
2017
2018
2018
🦇
1
1997
🦑
@_Nec - https://nec.is
ES.Next
Top-level Await
Pipeline Operator
Bind operator
Array.prototype.flat /smoosh/
Private Class methods
Optional Chaining
Partial Application
…
@_Nec - https://nec.is
TC39
@_Nec - https://nec.is
TC39
Technical Committee
Delegáltak:
• Böngészőgyártók

Google, Microsoft, Apple, Mozilla, Samsung
• Érdekelt Cégek

IBM, Bloomberg, SalesForce
• Nyílt forrású Projektek

Babel, Webpack
• Akadémikusok
@_Nec - https://nec.is
Gyűlések
2 havonta
3 napos gyűlés
~50 résztvevő
Szigorú Napirend
Javaslatok bemutatása, megvitatása
15-30-45-60 perces előadások
@_Nec - https://nec.is
Javaslatok
Nyílt rendszer
Bárki hozzájárulhat, benyújthat új
javaslatot

GitHub Pull Request
https://github.com/tc39
@_Nec - https://nec.is
Javaslatok
Egyszerű, érthető leírás
Pár használati példa
További lehetőségek
Polyfill, Babel plugin
Specifikáció
Tesztek
@_Nec - https://nec.is
Bajnokok
Javaslatot bárki beküldhet
Csak ECMA tagok dönthetnek a
sorsáról
Támogató tagok
@_Nec - https://nec.is
Fokozatok
Stage 0
Stage 1
Stage 2
Stage 3
Stage 4


Ötlet
Igény, Ismertető, API, Bajnok, PolyFill / demo
Specifikáció vázlat, pontos szintaktika
Teljes specifikáció, A javaslat elbírálva
Minimum két implementáció, Tesztek,

Implementációs tapasztalat
@_Nec - https://nec.is
Tesztek
Test262
Egy adott implementáció mennyire
pontosan követi a specifikációt
TC39 tagok írják, tartják karban
11000+ teszt
2013 óta
@_Nec - https://nec.is
Lefokozás
Pl.: Stage 3 👉 Stage 2
Konfliktus
• más specifikációval
• elterjedt kóddal (lib, framework)
Újratervezés
“Breaking the Web”
@_Nec - https://nec.is
Nyílt Forrású
Specifikáció
@_Nec - https://nec.is
Nyílt Forrású
Specifikáció
https://github.com/tc39
@_Nec - https://nec.is
Közösségi

alapok
Kevésbé népszerű pluginek

Flash, Silverlight
Népszerű könyvtárak, eszközök

lodash, Bluebird, jQuery
Mobil/Natív - közeli élmény

Push Notifications, Service Workers, Offline
@_Nec - https://nec.is
Közösség
@_Nec - https://nec.is
Sokszínű
Alkalmazási területek
Kultúrák, nyelvek
Emberek
@_Nec - https://nec.is
Sokszínű
Változástűrő
Több oldalról szemlélt problémák
Innovatív
@_Nec - https://nec.is
Befogadó
Könnyen elsajátítható
Böngésző mint futtatókörnyezet
Kreativitás
@_Nec - https://nec.is
Befogadó
Bárki nekivághat
Segítő szándék
Előítéletektől mentes
Code of Conduct
@_Nec - https://nec.is
Barátságos
Emberek
Kommunikáció
Asszertív hozzáállás
Összetartás
@_Nec - https://nec.is
https://github.com/tc39
♥
@_Nec - https://nec.is
🖖

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JavaScript - Hogyan készül