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
   

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2. 1000ch
   

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3. Profile
   WebϑϩϯτΤϯυΤϯδχΞ
   HTML5ͱ͍͏͔Webٕज़શൠ
   Node.js + iOS/Mac
   #perfmatters
   

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4. @cssradar @hiloki @t32k @1000ch @ahomu
   Frontend Weekly
   • ࠃ಺֎ͷϑϩϯτΤϯυ৘ใΛΩϡϨʔγϣϯ
   • िʹҰ౓ਫ༵೔ʹ഑৴
   

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5. @cssradar @hiloki @t32k @1000ch @ahomu
   Frontend Weekly
   • ࠃ಺֎ͷϑϩϯτΤϯυ৘ใΛΩϡϨʔγϣϯ
   • िʹҰ౓ਫ༵೔ʹ഑৴
   https://frontendweekly.tokyo
   

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6. ࡢࠓͷWebϑϩϯτΤϯυ…
   

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8. ߴ౓Խ͢ΔWebϑϩϯτΤϯυ
   ߴ·Γଓ͚ΔϑϩϯτΤϯυͷൺॏ
   มΘΓଓ͚ΔWebΞϓϦέʔγϣϯ
   ૿͑ଓ͚Δ৽͍ٕ͠ज़ͱपลπʔϧ
   

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9. ʮؾ͍ͮͨ࣌ʹ͸ഇΕͯΔʯ
   ͳΜͯ͜ͱ΋͠͹͠͹
   

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10. ͦΜͳதͰ΋
    ഇΕʹ͍ٕ͘ज़…
    

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11. Web Standards
    W3CɾWHATWGɾECMAͳͲ͕த৺ʹͳͬͯ
    Webͷඪ४ͱͳΔٕज़࢓༷Λࡦఆ͍ͯ͠Δ
    

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12. ࠷ۙྲྀߦΓͷ཈͓͖͍͑ͯͨ
    Webඪ४Λ͓͞Β͍
    ※͜Ε͚ͩ΍Ε͹ΠΠͱ͍͏จ຺Ͱ͸ܾͯ͋͠Γ·ͤΜ
    

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13. ࠷ۙ΢ϫαͷ…
    Webඪ४ٕज़ ݫબ5બ
    

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14. 1. ECMAScript 2015
    

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15. ECMAScript 2015
    Ϋϥεߏจ΍Ξϩʔؔ਺ɺPromiseͳͲ
    ػೳɾγϯλοΫεڞʹେ෯ʹڧԽ͞Εͨ
    ͍ΘΏΔES6΍Harmonyͱݺ͹ΕΔ΋ͷ
    2015೥6݄ʹ6th edition͕ඪ४Խ͞Εͨ
    Chrome΍Firefox͕࣮૷ΛਐΊΔ΋
    γΣΞશମΛݟΔͱ·ͩ·ͩ๡͍͠
    !
    ?
    ♥
    

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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
    

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17. ͍·͔Β͸͡ΊΔECMAScript 6
    http://www.slideshare.net/1000ch/begin-ecmascript6
    

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18. ͍·͙͢׆͔͢ʂ࠷৽JavaScript
    WEB+DB PRESS Vol.87 ಛू1
    

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19. 2. CSS.next
    

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20. CSS.next
    Selector Level4ɾNotationɾϓϩύςΟͳͲ
    ػೳ໘Ͱ༷ʑͳڧԽ͕ͳ͞Ε͍ͯΔ
    ʮCSS3Ͱ੝Γ্͕ͬͨʙʯҎ߱ͷมߋ
    ϓϦϓϩηοαͷӨڹΛड͚͍ͯΔ
    ES6ಉ༷ϒϥ΢βͷରԠঢ়گ͸ࢥΘ͘͠ͳ͍
    !
    ?
    ♥
    

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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;
    }
    

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22. cssnextͰΈΔ࣍ੈ୅CSSͱPostCSS
    http://blog.yucchiy.com/2015/04/22/cssnext-postcss-for-
    nextgeneration-of-css
    

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23. 3. HTTP/2
    

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24. HTTP/2
    !
    ?
    ♥ ϓϩτίϧϨϕϧͰ௨৴ޮ཰͕ྑ͘ͳΓ
    αʔόʔPushͳͲWebج൫ͱͯ͠΋ਐԽ
    WWWͰ࠾༻͞Ε͍ͯΔHTTPͷ
    1.1͔Β2΁࣮ʹ16೥ͿΓόʔδϣϯUP
    ϒϥ΢β͓ΑͼαʔόʔͷରԠ͕ඞཁ
    طଘͷύϑΥʔϚϯεʹؔ͢Δϊ΢ϋ΢ͷݟ௚͠
    

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25. http://www.http2demo.io/
    

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26. HTTP/2ͷݱঢ়ͱ͜Ε͔Β
    http://www.slideshare.net/shigeki_ohtsu/http2-ohtsu-html5conf2015
    

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27. 4. Web Components
    

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28. Web Components
    !
    ?
    ♥ HTML/CSS/JSͷείʔϓ໰୊ͷࠜຊతͳղܾ
    Web෦඼ͷ࠶ར༻ʹ޲͚ͨ
    ίϯϙʔωϯτԽͷ࡞๏ͷඪ४Խ
    ϒϥ΢βͷ࣮૷Ҏલʹɺ࢓༷͕Fix͍ͯ͠ͳ͍
    ʢಛʹShadow DOMͱHTML Importsʣ
    

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29. http://1000ch.github.io/switch-element/
    

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30. ͳͥWeb Components͸΢Σϒ։ൃʹֵ໋Λى͜͢ͷ͔
    https://blog.agektmr.com/2014/05/web-components.html
    

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31. جૅ͔ΒΘ͔Δ Web Components పఈղઆ
    https://html5experts.jp/series/web-components-2/
    

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32. 5. Service Worker
    

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33. Service Worker
    !
    ?
    ♥ αʔόʔPushͷड৴΍ΦϑϥΠϯԽͳͲ
    Webʹ͓͚ΔϢʔβʔମݧΛେ͖͘ม͑Δ
    Push APIɾCache APIͳͲΛ୲͏
    ػೳΛ࣮ݱ͢Δ৽ͨͳWebͷج൫ٕज़
    ηΩϡΞͳWebʢHTTPSʣͰ͔͠ར༻Ͱ͖ͳ͍
    

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34. https://1000ch.github.io/todo/
    

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35. Service Workerʹؔ͢Δ࢓༷ͱ͔ػೳͱ͔
    https://1000ch.net/posts/2014/service-worker-internals.html
    

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36. Service Workerͷ঺հ
    http://www.html5rocks.com/ja/tutorials/service-worker/introduction
    

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37. ʮศརͦ͏ͳͷ͸Θ͔ͬͨʯ
    ʮࢼͯ͠Έ͍ͨؾ΋͢Δʯ
    

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38. ʮϒϥ΢βͷରԠঢ়گͬͯ
    Ͳ͏ͳΜͰ͠ΐ͏…ʯ
    

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39. How to fallback?
    

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40. ES 2015
    CSS.next
    HTTP/2
    Web Components
    Service Worker
    

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41. ES 2015
    CSS.next
    HTTP/2
    Web Components
    Service Worker
    BabelɾCSSnextɾAutoprefixerͱ
    ͍ͬͨΑ͏ͳ֤छπʔϧ࢖ͬͯɺ
    ඇରԠϒϥ΢βͰ΋࣮ߦͰ͖ΔΑ
    ͏ͳJavaScriptʹม׵ʢτϥϯε
    ύΠϧʣ͢Δ
    

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42. ES 2015
    CSS.next
    HTTP/2
    Web Components
    Service Worker
    ΫϥΠΞϯτͱͷΤϯυϙΠϯτ
    αʔόʔʹHTTP/2ΛରԠͤ͞Δ
    ʢΫϥΠΞϯτ͕HTTP/2ʹରԠ͠
    ͍ͯΕ͹HTTP/2Ͱ௨৴͠ɺඇରԠ
    Ͱ͋Ε͹HTTP/1.1ʹʣ
    

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43. ES 2015
    CSS.next
    HTTP/2
    Web Components
    Service Worker
    WebComponents.jsͱ͍͏ϙϦϑΟ
    ϧΛ࢖͏͜ͱͰݹ͍ϒϥ΢β
    ʢSafari 7+ɾIE11+ʣͰ΋͋Δఔ౓
    ࣮ߦͰ͖ΔΑ͏ʹͳΔ
    

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44. ES 2015
    CSS.next
    HTTP/2
    Web Components
    Service Worker
    ΦϑϥΠϯରԠ΋αʔόʔPushΛ
    ඞਢͷཁ݅ͱ͠ͳ͚Ε͹ɺͦ΋ͦ
    ΋ΦϓτΠϯͱͯ͠ಋೖ͠΍͍͢ɻ
    ରԠ͍ͯ͠Δϒϥ΢βʹରͯͩ͠
    ͚Ͱ΋ϢʔβʔΤϯήʔδϝϯτ
    ΛߴΊΒΕΔ
    

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45. ·ͱΊ
    தʹ͸ීٴͤͣʹඇਪ঑ʹͳ͍ͬͯ͘΋ͷ΋…
    ރΕʹ͍͕͘ಋೖ͠ʹ͘͞΋͔֬ʹ͋Δ
    ঺հͨ͠Ϟϊ͸ΩϟονΞοϓͯ͠ଛ͸ͳ͍
    

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46. खݩͰࢼͯ͠ΈΔ΋Α͠
    αʔϏεʹऔΓೖΕΔ΋Α͠
    

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47. ※͝ར༻͸ܭըతʹ
    

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48. ͓ΘΓ
    + +ShogoSensui
    %
    &
    1000ch
    1000ch
    

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