Contribute to Web

Nihonbashi.js #2

1. from Node to Browser Contribute to Web @Nihonbashi.js #2
2. Hello! const self = { name: 'Hash (@hashedhyphen)', lang: ['JS', 'Rust', 'Ruby', 'Scala'] };
3. “Contribute to Web” 1. Localization
4. 1. Localization ❖ JavaScript ͱग़ձͬͨͷ͸໿ 2 ೥લ ❖ ᷿ͷ೔ຊޠ৘ใ͸ HTML ͱͷؔ࿈͹͔Γ ❖ গ͠ϚΠφʔʹͳΔͱӳޠυΩϡϝϯτ͚ͩ ❖ ͦΕ΄Ͳӳޠ͕ಘҙͰ͸ͳ͔ͬͨͷͰͭΒ͍
6. “຋༁͠Α͏ʂ”
7. 1. Localization ❖ ೔ຊޠ৘ใ͕ͳ͚Ε͹ࣗ෼Ͱ࡞Ε͹͍͍ ❖ MDN ͸ wiki ͳͷͰࣗ༝ʹ೔ຊޠهࣄΛ࡞ΕΔ ❖ ΋ͪΖΜٕज़໘ͰษڧʹͳΔ ❖ ຋༁ = ਫ਼ಡ͢Δ͏ͪʹ࣍ୈʹӳޠ͕ා͘ͳ͘ͳΔ
9. 1. Localization ❖ MDN (Browser JS API, Security, CSS) ❖ Mozilla Security Blog ೔ຊޠ൛ ❖ webappsec-specjp
10. “Contribute to Web” 2. Filing Issues - Node
11. 2. Filing Issues - Node ಥવͰ͕͢͜͜ͰΫΠζͰ͢ ࣍ͷίʔυͷ࣮ߦ݁Ռ͸ԿͰ͠ΐ͏͔ʁ ʢ࣮ߦ؀ڥɿNode v8.3.0ʣ
12. // quiz1.js class Base {} class Derived extends Base { hi() { console.log("hi"); } } const d = new Derived(); d.hi();
13. $ node quiz1.js hi
14. // quiz2.js class Derived extends Buffer { constructor(n) { super(n); } hi() { console.log("hi"); } } const d = new Derived(8); d.hi();
15. $ node quiz2.js /Users/hh/quiz2.js:14 d.hi(); ^ TypeError: d.hi is not a function
16. 2. Filing Issues - Node ❖ ͜Ε͸͕͢͞ʹόάͰ͸… ❖ GitHub Ͱ Issue ใࠂ ❖ Node ͷ Nightly build Ͱ΋࠶ݱ͢Δ͜ͱΛ֬ೝ ❖ Issue ͷӳจ਺ߦΛॻ͘ͷʹ 30 ෼͙Β͍೰Μͩ ❖ ಡΉͷͱॻ͘ͷͱ͸·ͨผ…
18. 2. Filing Issues - Node ❖ 1:44 ʹ Issue ใࠂ ❖ 2:50 ʹ࠷ॳͷฦ৴ + Self assigned ❖ 3:12 ʹमਖ਼Ҋͷύον͕ϦϯΫ͞ΕΔʢ଎͍ʂʣ
19. 2. Filing Issues - Node ❖ ࣌ظతʹ Node v5 ͔Β v6 ΁ͷస׵ظ ❖ new Buffer Λ΍Ίͯ Buffer.from ʹ͢ΔͳͲ ❖ ͜ͷमਖ਼͕ master ʹೖΔ͜ͱ͸ͳ͔͕ͬͨɺ Buffer Λ௚઀ extends ͢Δ͜ͱ͸كʁ
20. “Contribute to Web” 3. Filing Issues - Browser
21. 3. Filing Issues - Browser ❖ ͋Δ೔ TweetDeck Λ Firefox Ͱ࢖͍ͬͯͨΒ ❖ ೔ຊޠೖྗͰࢠԻͱ฼Ի͕࿈݁͞Εͳ͍ʂ
23. 3. Filing Issues - Browser ❖ ະ֬ఆจࣈ͕ textarea.value ͳͲʹೖͬͨ৔߹ͷ ಈ࡞͸ WHATWG Ͱ͸ະఆٛ textarea.addEventListener("input", _evt => { textarea.value = textarea.value; }); ࣮ࡍʹ໰୊ͱͳ͍ͬͯͨͱਪଌ͞ΕΔٖࣅίʔυ front side ϏϧυϓϩηεͷෳࡶԽʹΑͬͯฆΕࠐΜ͔ͩʁ
24. 3. Filing Issues - Browser ❖ TweetDeck νʔϜଆͷςετෆ଍͕ݪҼ ❖ ৄࡉɿ΋ͣ͸ͬ͘೔هɿ TweetDeckͰFirefox͔Β ೔ຊޠ͕ೖྗͰ͖ͳ͘ͳ͍ͬͯΔ݅ ❖ Gecko ͱ Twitter ͷ։ൃऀ͕௚઀΍ΓऔΓ͢Δڳ ೤ͳల։
25. 3. Filing Issues - Browser ❖ ཤྺॻΛ HTML + CSS Ͱ࡞͍ͬͯͨͱ͖ͷ͜ͱ ❖ <li> ͱ Flexbox ͕ೖΕࢠʹͳͬͨϖʔδΛ Chrome Ͱදࣔ͢ΔͱҐஔ͕͓͔͘͠ͳΔ ❖ Issue 579601: li::marker with flexbox is placed on a slipped position ❖ ·ͩະमਖ਼
27. ͜͜·ͰΛৼΓฦͬͯ ❖ JavaScript ʹؔ࿈͢Δ OSS contribution ͷΠϕϯ τ͡Όͳ͔ͬͨͷʁ ❖ Πϕϯτͷझࢫͱ߹͍ͬͯͳ͍͡ΌͶ͔͑
28. ͜͜·ͰΛৼΓฦͬͯ ❖ JavaScript ʹؔ࿈͢Δ OSS contribution ͷΠϕϯ τ͡Όͳ͔ͬͨͷʁ ❖ Πϕϯτͷझࢫͱ߹͍ͬͯͳ͍͡ΌͶ͔͑ ❖ ͔͜͜Β͕ຊ୊Ͱ͢
29. “Browser ͷ JS API ʹܞΘͬͨ࿩”
30. “Contribute to Web” 4. Browser Inside
31. 4. Browser Inside ❖ Gecko inside #7ɿύονΛ࡞Ζ͏ϋϯζΦϯ ❖ Gecko (Firefox) ͷίϛολʔͱҰॹʹύονΛ
 ࡞ΔϋϯζΦϯ ❖ Web Animations API ʹ͓͍ͯΞχϝʔγϣϯͷ Ҡಈํ޲Λ੍ޚ͢Δ࣮૷ͷ͓ख఻͍ ❖ ΋ͪΖΜ Bugzilla ͰӳޠͰίϛϡχέʔγϣϯ
32. ࣮ࡍʹॻ͍ͨ C++ ίʔυʢ7 ߦʣ ΋ͪΖΜطʹ͓હཱ͍͍͍ͯͯͨͩͯͨ͠
33. ࣮ࡍʹॻ͍ͨ JS ͷ ςετίʔυʢ56 ߦʣ
34. 4. Browser Inside ❖ Browser ͸͓ͦΒ͘ੈքͰҰ൪ڊେͳ C++ ͷ
 OSS ϓϩδΣΫτͳͷͰ͸ʁʢݸਓͷҙݟʣ ❖ ੈքதͷਓ͕࢖͍ͬͯΔ΋ͷʹࣗ෼ͷίʔυ͕
 ࢖ΘΕ͍ͯΔͬͯͪΐͬͱخ͍͠
35. 4. Browser Inside ❖ Πϕϯτޙ΋௚઀Կݸ͔νέοτΛΞαΠϯͯ͠ ͍͍ͨͩͨΓ ❖ JS ͷςετίʔυΛϦϑΝΫλϦϯάͨ͠Γ ❖ ΋͏গ͠೉͍͠ C++ ͷίʔυΛॻ͍ͨΓ ❖ e.g. Ξχϝʔγϣϯؔ࿈ͷ devtools ͷόάमਖ਼
36. 4. Browser Inside ❖ Firefox DevTools ͷόάमਖ਼ ❖ DevTools ͸ HTML (XML) + CSS + JS ❖ ࣮͸ Firefox DevTools ʹ React ͕࠾༻͞Ε͍ͯΔ
38. “Contribute to Web” Wrap up
39. Wrap up ❖ ΍ͬͺΓ OSS ͸ָ͍͠ʂ ❖ web ք۾Ͱͷ “OSS” ͱ͍͏ͱ࢓ࣄͰ࢖͍ͬͯΔ ϥΠϒϥϦɾݴޠʹറΒΕ͕ͪ ❖ web dev ͳΒ Browser ʹ΋໨Λ޲͚͍͖͍ͯͨ ❖ ීஈͷ։ൃͰग़ձͬͨόά͸ੵۃతʹใࠂ͍ͨ͠