KnockjoutJS紹介 - Speaker Deck

KnockjoutJS紹介

by Chihiro Naganuma

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KnockoutJS঺հ ࣾ಺Ͱ঺հ͖ͯͨ͠΍ͭ 2013/05/15 ͳ͕͵·ͪͻΖ

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ͳ͕͵·ͪͻΖ • ˏonjiro_mohyahya • ΀Ζ͙Β· • ͍͖͞ΜFuelPHPɾɾɾ • js/Java/Ruby/CSS • Backbone.js͖͢ʔ

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ࠓ೔ͷ͸ͳ͠

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KnockoutJSʹ͍ͭͯ ௐ΂ͯΈͨΑ

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• KnockoutJSͬͯ͜Μͳͷɻ • observable ͱ binding • ίʔυྔগͳΊ • ϚʔΫΞοϓͷมߋ͠΍ͦ͢͏

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໨࣍ • KnockoutJSͱ͸ • KnockoutJS࢖͍ํ • ͰɺͲ͏Αʁ

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໨࣍ • KnockoutJSͱ͸ • KnockoutJS࢖͍ํ • ͰɺͲ͏Αʁ

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http://knockoutjs.com/

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• jsͷϥΠϒϥϦ • ΫϥΠΞϯταΠυMV*ϑϨʔϜϫʔΫ • MVVM Patern

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• jsͷϥΠϒϥϦ • ΫϥΠΞϯταΠυMV*ϑϨʔϜϫʔΫ • MVVM Patern

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ΫϥΠΞϯταΠυ MV*ͷ͓͞Β͍

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• ΫϥΠΞϯτଆjsίʔυͷෳࡶԽΛͳΜ ͱ͔͢Δٕज़ͷͻͱͭ • ೔ຊͰ͸Backbone.js͕༗໊

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JavaScript

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We love jQuery!!

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But...

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࠷ۙͷϦονͰෳࡶͳUIΛ jQuery͚ͩͰ࡞Δͱେม

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jQueryͰͷ໰୊఺

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Πϕϯτϋϯυϥͷத Ͱ৭ʑ΍ͬͪΌ͏

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• DOM͔ΒσʔλऔΓग़͠ • AjaxͰαʔόʔͱσʔλͷ΍ΓͱΓ • දࣔͷߋ৽

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ྫʣhttp://www.slideshare.net/slideshow/ embed_code/15645947?startSlide=19 ʢ56ຕ໨͘Β͍·Ͱʣ

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• “ػೳ”ͱ”දࣔ”͕ҰମʹͳΓ͕ͪ • DOMʹػೳ͕ґଘ͕ͪ͠ • “දࣔ”͸มߋ͞Ε΍͍͢෦෼

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ʔʼมߋʹऑ͍ :-p

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ɾɾɾͱ͍͏Θ͚Ͱ

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ΫϥΠΞϯταΠυMVC ϑϨʔϜϫʔΫͷ୆಄

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”දࣔ”Λ”ػೳ”͔Β ෼཭͢Δ

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• ػೳ͸Modelͷ੹຿ • දࣔ͸Viewͷ੹຿ • ػೳࣗମ͸ViewʹͳΔ΂͘ґଘ͠ͳ͍

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• Observer PatternΛ࠾༻ • ModelͷมߋΛEventͰ఻͑Δ • View͕ModelΛ؂ࢹɺDOMΛॻ͖׵͑ ྫʣBackbone.jsͷ࡞ઓ

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Model View HTML Server Backbone.EventΛ listen HTMLͷEventΛ listen

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http://todomvc.com/

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໨࣍ • KnockoutJSͱ͸ • KnockoutJS࢖͍ํ • ͰɺͲ͏Αʁ

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࣮ࡍͷίʔυྫʢtodomvcͷجຊ෦෼͚ͩʣ http://onjiro.github.io/knockout-handson/public

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• observable • binding

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“observableͳViewModel”Λ “Viewʹbind”͢Δ

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• Observer PatternΛ࠾༻ • View(html)←→ViewModelؒ͸ࣗಈ൓ө KnockoutJSͷ࡞ઓ

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ViewModel HTML data-bindͰ੍ޚ ko.applyBinding ஋Λࣗಈతʹ൓ө eventϋϯυϥʔద༻ KnockoutJS ࣗಈදࣔɾߋ৽ ͜Μͳײ͔͡ͳʁ

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3छྨͷobservable 3छྨͷbinding

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3छྨͷobservable 3छྨͷbinding

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• ko.observable • ko.computed • ko.observableArray

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3छྨͷobservable 3छྨͷbinding

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• ςΩετͱελΠϧ • ίϯτϩʔϧϑϩʔ • ϑΥʔϜؔ࿈

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ͱ͜ΖͰ

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Ajaxαϙʔτ͸ʁ

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• AjaxपΓͷऔΓܾΊ͸ͳ͍ http://knockoutjs.com/documentation/json-data.html • JSONͱϞσϧؒͷม׵͸αϙʔτ ko.toJS/ko.toJSON • JSON.stringify΋ී௨ʹ࢖͑Δ

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໨࣍ • KnockoutJSͱ͸ • KnockoutJS࢖͍ํ • ͰɺͲ͏Αʁ

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• data-bind͕Ұݟ͖΋͍ • Backbone.jsΑΓίʔυྔݮΓͦ͏ • ݟ௨͠͸Α͍ɾɾɾ͔΋

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data-bind͕ Ұݟ͖΋͍

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• data-bindͷཛྷ • htmlͬͯviewͳΜ͡Όͳ͍ͷʁ • text, value͸͍͍͚Ͳ • click, submit, etc... • Ͳ͏ͳΜͩʁ

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Backbone.jsΑΓ ίʔυྔগͳ͍

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• ҎԼ͕ࣗಈͳͷ͕ޮ͍͍ͯΔ • ೖྗΛModelʹ൓ө • Modelͷߋ৽Λը໘ʹ൓ө • foreachͰͷల։

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ݟ௨͠͸Αͦ͞͏

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• html͸ݟ΍͍͢ • js ͳ͠Ͱ΋σβΠϯΘ͔Δ • େମͷಈ͖΋Θ͔Δɾɾɾ͔΋ • ϚʔΫΞοϓͷมߋ͠΍ͦ͢͏

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ࠓͷݒ೦

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• ಘҙύλʔϯΛ཭ΕͨࡍʹͲ͏ͩΖ ͏ʁ

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• গ͠·ͱ΋ʹ࢖ͬͯΈͳ͍ͱͳΜͱ΋ ݴ͑ͳ͍ײ • Backbone.jsΑΓෳ਺ਓͷ։ൃ͸ ָɾɾɾ͔ͳ͊ɻɻɻ

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·ͱΊ

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• observableͱbinding • ίʔυྔগͳΊ • ϚʔΫΞοϓͷมߋ͠΍ͦ͢͏

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• http://tnakamura.hatenablog.com/entry/20120213/knockout • http://www.slideshare.net/shibayan/knockout-11523371 • http://www.slideshare.net/hakuraipod/knockout-14911482 • http://www.adobe.com/jp/devnet/html5/articles/getting- started-with-knockoutjs.html • http://www.slideshare.net/tricknotes/introduction-for- browser-side-mvc ࢀߟ