初心者のためのWeb標準技術 / Study Web Standards

2015年8月27日に行われたHTML5ビギナーズ勉強会の「初心者のためのWeb標準技術」のセッションの資料です。

Transcript

1. ॳ৺ऀͷͨΊͷ Webඪ४ٕज़2015ळ at HTML5ϏΪφʔζ by 1000ch
2. 1000ch
3. Profile WebϑϩϯτΤϯυΤϯδχΞ HTML5ͱ͍͏͔Webٕज़શൠ Node.js + iOS/Mac #perfmatters
4. @cssradar @hiloki @t32k @1000ch @ahomu Frontend Weekly • ࠃ಺֎ͷϑϩϯτΤϯυ৘ใΛΩϡϨʔγϣϯ • िʹҰ౓ਫ༵೔ʹ഑৴
5. @cssradar @hiloki @t32k @1000ch @ahomu Frontend Weekly • ࠃ಺֎ͷϑϩϯτΤϯυ৘ใΛΩϡϨʔγϣϯ • िʹҰ౓ਫ༵೔ʹ഑৴ https://frontendweekly.tokyo
6. ࡢࠓͷWebϑϩϯτΤϯυ…
8. ߴ౓Խ͢ΔWebϑϩϯτΤϯυ ߴ·Γଓ͚ΔϑϩϯτΤϯυͷൺॏ มΘΓଓ͚ΔWebΞϓϦέʔγϣϯ ૿͑ଓ͚Δ৽͍ٕ͠ज़ͱपลπʔϧ
9. ʮؾ͍ͮͨ࣌ʹ͸ഇΕͯΔʯ ͳΜͯ͜ͱ΋͠͹͠͹
10. ͦΜͳதͰ΋ ഇΕʹ͍ٕ͘ज़…
11. Web Standards W3CɾWHATWGɾECMAͳͲ͕த৺ʹͳͬͯ Webͷඪ४ͱͳΔٕज़࢓༷Λࡦఆ͍ͯ͠Δ
12. ࠷ۙྲྀߦΓͷ཈͓͖͍͑ͯͨ Webඪ४Λ͓͞Β͍ ※͜Ε͚ͩ΍Ε͹ΠΠͱ͍͏จ຺Ͱ͸ܾͯ͋͠Γ·ͤΜ
13. ࠷ۙ΢ϫαͷ… Webඪ४ٕज़ ݫબ5બ
14. 1. ECMAScript 2015
15. ECMAScript 2015 Ϋϥεߏจ΍Ξϩʔؔ਺ɺPromiseͳͲ ػೳɾγϯλοΫεڞʹେ෯ʹڧԽ͞Εͨ ͍ΘΏΔES6΍Harmonyͱݺ͹ΕΔ΋ͷ 2015೥6݄ʹ6th edition͕ඪ४Խ͞Εͨ Chrome΍Firefox͕࣮૷ΛਐΊΔ΋ γΣΞશମΛݟΔͱ·ͩ·ͩ๡͍͠ ! ? ♥
16. function Human(name) { if (name === undefined) { name = 'Taro'; } this.name = name; } Human.prototype.hello = function() { console.log('My name is ' + this.name); }; class Human { constructor(name = 'Taro') { this.name = name; } hello() { console.log(`My name is ${this.name}`); } } ES5 ES6
17. ͍·͔Β͸͡ΊΔECMAScript 6 http://www.slideshare.net/1000ch/begin-ecmascript6
18. ͍·͙͢׆͔͢ʂ࠷৽JavaScript WEB+DB PRESS Vol.87 ಛू1
19. 2. CSS.next
20. CSS.next Selector Level4ɾNotationɾϓϩύςΟͳͲ ػೳ໘Ͱ༷ʑͳڧԽ͕ͳ͞Ε͍ͯΔ ʮCSS3Ͱ੝Γ্͕ͬͨʙʯҎ߱ͷมߋ ϓϦϓϩηοαͷӨڹΛड͚͍ͯΔ ES6ಉ༷ϒϥ΢βͷରԠঢ়گ͸ࢥΘ͘͠ͳ͍ ! ? ♥
21. CSS.next CSS :root { --primary-color: #E86100; --base-fontsize: 1rem; } h1 { font-size: calc(var(--base-fontsize) * 2); height: calc(100px - 2em); } body { font-size: var(--base-fontsize); } h1 { font-size: 2rem; height: calc(100px - 2em); } body { font-size: 1rem; }
22. cssnextͰΈΔ࣍ੈ୅CSSͱPostCSS http://blog.yucchiy.com/2015/04/22/cssnext-postcss-for- nextgeneration-of-css
23. 3. HTTP/2
24. HTTP/2 ! ? ♥ ϓϩτίϧϨϕϧͰ௨৴ޮ཰͕ྑ͘ͳΓ αʔόʔPushͳͲWebج൫ͱͯ͠΋ਐԽ WWWͰ࠾༻͞Ε͍ͯΔHTTPͷ 1.1͔Β2΁࣮ʹ16೥ͿΓόʔδϣϯUP ϒϥ΢β͓ΑͼαʔόʔͷରԠ͕ඞཁ طଘͷύϑΥʔϚϯεʹؔ͢Δϊ΢ϋ΢ͷݟ௚͠
25. http://www.http2demo.io/
26. HTTP/2ͷݱঢ়ͱ͜Ε͔Β http://www.slideshare.net/shigeki_ohtsu/http2-ohtsu-html5conf2015
27. 4. Web Components
28. Web Components ! ? ♥ HTML/CSS/JSͷείʔϓ໰୊ͷࠜຊతͳղܾ Web෦඼ͷ࠶ར༻ʹ޲͚ͨ ίϯϙʔωϯτԽͷ࡞๏ͷඪ४Խ ϒϥ΢βͷ࣮૷Ҏલʹɺ࢓༷͕Fix͍ͯ͠ͳ͍ ʢಛʹShadow DOMͱHTML Importsʣ
29. http://1000ch.github.io/switch-element/
30. ͳͥWeb Components͸΢Σϒ։ൃʹֵ໋Λى͜͢ͷ͔ https://blog.agektmr.com/2014/05/web-components.html
31. جૅ͔ΒΘ͔Δ Web Components పఈղઆ https://html5experts.jp/series/web-components-2/
32. 5. Service Worker
33. Service Worker ! ? ♥ αʔόʔPushͷड৴΍ΦϑϥΠϯԽͳͲ Webʹ͓͚ΔϢʔβʔମݧΛେ͖͘ม͑Δ Push APIɾCache APIͳͲΛ୲͏ ػೳΛ࣮ݱ͢Δ৽ͨͳWebͷج൫ٕज़ ηΩϡΞͳWebʢHTTPSʣͰ͔͠ར༻Ͱ͖ͳ͍
34. https://1000ch.github.io/todo/
35. Service Workerʹؔ͢Δ࢓༷ͱ͔ػೳͱ͔ https://1000ch.net/posts/2014/service-worker-internals.html
36. Service Workerͷ঺հ http://www.html5rocks.com/ja/tutorials/service-worker/introduction
37. ʮศརͦ͏ͳͷ͸Θ͔ͬͨʯ ʮࢼͯ͠Έ͍ͨؾ΋͢Δʯ
38. ʮϒϥ΢βͷରԠঢ়گͬͯ Ͳ͏ͳΜͰ͠ΐ͏…ʯ
39. How to fallback?
40. ES 2015 CSS.next HTTP/2 Web Components Service Worker
41. ES 2015 CSS.next HTTP/2 Web Components Service Worker BabelɾCSSnextɾAutoprefixerͱ ͍ͬͨΑ͏ͳ֤छπʔϧ࢖ͬͯɺ ඇରԠϒϥ΢βͰ΋࣮ߦͰ͖ΔΑ ͏ͳJavaScriptʹม׵ʢτϥϯε ύΠϧʣ͢Δ
42. ES 2015 CSS.next HTTP/2 Web Components Service Worker ΫϥΠΞϯτͱͷΤϯυϙΠϯτ αʔόʔʹHTTP/2ΛରԠͤ͞Δ ʢΫϥΠΞϯτ͕HTTP/2ʹରԠ͠ ͍ͯΕ͹HTTP/2Ͱ௨৴͠ɺඇରԠ Ͱ͋Ε͹HTTP/1.1ʹʣ
43. ES 2015 CSS.next HTTP/2 Web Components Service Worker WebComponents.jsͱ͍͏ϙϦϑΟ ϧΛ࢖͏͜ͱͰݹ͍ϒϥ΢β ʢSafari 7+ɾIE11+ʣͰ΋͋Δఔ౓ ࣮ߦͰ͖ΔΑ͏ʹͳΔ
44. ES 2015 CSS.next HTTP/2 Web Components Service Worker ΦϑϥΠϯରԠ΋αʔόʔPushΛ ඞਢͷཁ݅ͱ͠ͳ͚Ε͹ɺͦ΋ͦ ΋ΦϓτΠϯͱͯ͠ಋೖ͠΍͍͢ɻ ରԠ͍ͯ͠Δϒϥ΢βʹରͯͩ͠ ͚Ͱ΋ϢʔβʔΤϯήʔδϝϯτ ΛߴΊΒΕΔ
45. ·ͱΊ தʹ͸ීٴͤͣʹඇਪ঑ʹͳ͍ͬͯ͘΋ͷ΋… ރΕʹ͍͕͘ಋೖ͠ʹ͘͞΋͔֬ʹ͋Δ ঺հͨ͠Ϟϊ͸ΩϟονΞοϓͯ͠ଛ͸ͳ͍
46. खݩͰࢼͯ͠ΈΔ΋Α͠ αʔϏεʹऔΓೖΕΔ΋Α͠
47. ※͝ར༻͸ܭըతʹ
48. ͓ΘΓ + +ShogoSensui % & 1000ch 1000ch