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ビギナーズ_レビューから学ぶ+1
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Yohei Munesada
November 05, 2015
Technology
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15k
ビギナーズ_レビューから学ぶ+1
第13回HTML5ビギナーズ。ソースレビューを半年以上していて、その内容をまとめました。「バグがなくて読みやすい」がポイント。
Yohei Munesada
November 05, 2015
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Transcript
https://flic.kr/p/7g1xov ιʔεϨϏϡʔ͔ΒֶͿ +BWB4DSJQU )5.-ϏΪφʔζ .VOFTBEB:PIFJ
About me 㾎 फఆ༸ฏ 㾎 גࣜձࣾϒοΫςʔϒϧ 㾎 !ZPIFJ.VOF 㾎 IUUQXXXZPIFJNOFU
㾎 )5.-ϏΪφʔζελοϑ 㾎 δʔεΞΧσϛʔϝϯλʔ 㾎 ࠷ۙͷڵຯɿ1ZUIPO ػցֶश ֶ ౷ܭ
㾎 εϚϗ͚ిࢠॻ੶αΠτ 㾎 IUUQTEPLVTIPPKJLBOKQUPQ ✓ jQuery, Handlebars ✓ Single Page
Architecture ಡॻͷ͓࣌ؒͰ͢
1PJOUPG7JFX ϨϏϡʔͰݟ͍ͯΔϙΠϯτʁ
1PJOUPG7JFX όά͕ͳͯ͘ಡΈ͍͢
1PJOUPG7JFX όά͕ͳͯ͘ಡΈ͍͢
1PJOUPG7JFX όά͕ͳͯ͘ಡΈ͍͢ νʔϜͷ
όά͕ͳ͍ίʔυʁ
όά͕ͳ͍ ᶃ༷௨Γʹಈ͘ w ༷ͷ௨Γʹಈ͘ w ແବͳ͜ͱ͠ͳ͍ w ͋Γ͑ΔΤϥʔέʔεʹରԠ͍ͯ͠Δ
ᶄ Ћ কདྷతʹόάʹͳΓͮΒ͍ w ࠓޙ͋Γͦ͏ͳมߋʹ͑͏ΔઃܭͰ͋Δ w ࠓ࣮͢Δඞཁͳ͍͚Ͳ
༷௨Γʹಈ͘ model.book.fetchOne = function (bookName, callback) { var url =
'/api/book/search'; var params = {name: bookName}; api(url, params).then(function (books) { callback(books[0]); }); }
ແବͳ͜ͱ͠ͳ͍όά͕ͳ͍ // OK model.book.fetchOne = function (bookName, callback) {
var url = '/api/book/search'; var params = {name: bookName}; api(url, params).then(function (books) { callback(books[0]); }); }
ແବͳ͜ͱ͠ͳ͍όά͕ͳ͍ // NG model.book.fetchOne = function (bookName, callback) {
var url = '/api/book/search'; var params = {name: bookName}; api(url, params).then(function (books) { $(‘.mypage #btn’).addClass('enable'); ແବͳ͜ͱ callback(books[0]); }); }
ΤϥʔέʔεʹରԠ͍ͯ͠Δόά͕ͳ͍ model.book.fetchOne = function (bookName, callback) { var url
= '/api/book/search'; var params = {name: bookName}; api(url, params).then(function (books) { callback(books[0]); }); }
ΤϥʔέʔεʹରԠ͍ͯ͠Δόά͕ͳ͍ model.book.fetchOne = function (bookName, callback) { var url
= ‘/api/book/search'; // 1. bookName͕ະࢦఆʁ var params = {name: bookName}; api(url, params).then(function (books) { // 2. ݕࡧ݁Ռͳ͠ʢnull͕ฦͬͯ͘Δʣʁ // 3. callback͕ະࢦఆʁ callback(books[0]); }); }
ΤϥʔέʔεʹରԠ͍ͯ͠Δόά͕ͳ͍ model.book.fetchOne = function (bookName, callback) { var url
= ‘/api/book/search'; // 1. bookName͕ະࢦఆʁ => ࠓճؾʹ͠ͳ͍ var params = {name: bookName}; api(url, params).then(function (books) { // 2. ݕࡧ݁Ռͳ͠ʢۭͷྻ͕ฦͬͯ͘Δʣ=> nullνΣοΫ // 3. callback͕ະࢦఆʁ => ؾʹ͠ͳ͍ callback(books && books[0]); }); }
ࠓޙͷมߋʹڧ͍όά͕ͳ͍ model.book.fetchOne = function (bookName, callback) { var url
= '/api/book/search'; var params = {name: bookName}; api(url, params).then(function (books) { callback(books[0]); }); }
ࠓޙͷมߋʹڧ͍όά͕ͳ͍ // ύϥϝʔλ͕૿͑Δʁ model.book.fetchOne = function (bookName, callback) {
var url = '/api/book/search'; var params = {name: bookName}; api(url, params).then(function (books) { callback(books[0]); }); }
ࠓޙͷมߋʹڧ͍όά͕ͳ͍ // ύϥϝʔλ͕૿͑Δʁ => ҾΛՃ͢Δ model.book.fetchOne = function (name,
callback, genre, author) { var url = '/api/book/search'; var params = {name: bookName}; api(url, params).then(function (books) { callback(books[0]); }); }
ࠓޙͷมߋʹڧ͍όά͕ͳ͍ // ύϥϝʔλ͕૿͑Δʁ model.book.fetchOne = function (name, callback, genre,
author) { var url = '/api/book/search'; var params = {name: bookName}; api(url, params).then(function (books) { callback(books[0]); }); }
ࠓޙͷมߋʹڧ͍όά͕ͳ͍ // ύϥϝʔλ͕૿͑Δʁ => ෳࢦఆՄೳʹ model.book.fetchOne = function (conditions,
callback) { var url = '/api/book/search'; api(url, conditions).then(function (books) { callback(books[0]); }); } // ͍ํ model.book.fetchOne({name:’φϧτ’}, callback: function () {});
3Fɿόά͕ͳ͍ ᶃ༷௨Γʹಈ͘ w ༷ͷ௨Γʹಈ͘ w ແବͳ͜ͱ͠ͳ͍ w ͋Γ͑ΔΤϥʔέʔεʹରԠ͍ͯ͠Δ
ᶄ Ћ কདྷతʹόάʹͳΓͮΒ͍ w ࠓޙ͋Γͦ͏ͳมߋʹ͑͏ΔઃܭͰ͋Δ w ࠓ࣮͢Δඞཁͳ͍͚Ͳ
ಡΈ͍͢ίʔυ https://flic.kr/p/aAvh9L
ಡΈ͍͢ίʔυʁ
ಡΈ͍͢ίʔυʁ ຊޠͷจষͱಉ͡
͡Ό͕ͷ࡞Γํ δϟΨΠϞͱਓࢀେ͖ΊͷཚΓʹͯ͠ۄͶ͗͘͠Γɺ͠ Β͖ͨચͬͯదʹ͖Γ·͢ɻத՚ುʹ༉Λେ̎ೖΕڧՐʹ͠ɺ ΛೖΕ৭͕มΘΔ·ͰᖱΊͨΒ̍ೖΕܰ͘ᖱΊ·̇ࣽ͢ोͷ ࡐྉΛೖΕಅͨ͠ΒփोΛऔΓനୌΛೖΕࠞͥதڧՐͷ··མ ֖͠Λࣽ͠ो͕ແ͘ͳΔ·Ͱఔࣽ٧Ί·͢ɻࣽ٧Ί ͨॴͰҰࠞͥɺ࠶མ֖͠Λͯࣽ͠ो͕ͳ͘ͳΔ·Ͱ༷ࢠΛݟ ͳ͕ΒߋʹҐࣽ٧Ί͍͖ͯ·͢ɻࣽो͕ແ͘ͳͬͨΒՐΛࢭ Ίམ֖͠Λͨ͠··ؒɺৠΒ͠·̇͢ຯ͕ߋʹછΈࠐΈ· ͢ΐʂ͜͜େࣄʂͦͯ͠Ͱ̇͢
ʼʻɻɻɻ http://cookpad.com/recipe/1519259
͡Ό͕ͷ࡞Γํ Լ४උ ɹδϟΨΠϞେ͖ΊͷཚΓʹͯ͠ۄͶ͗͘͠Γɺ͠Β͖ͨચͬͯదʹ͖Γ·͢ɻ ᖱΊΔ ɹத՚ುʹ༉Λେ̎ೖΕڧՐʹ͠ɺΛೖΕ৭͕มΘΔ·ͰᖱΊͨΒ̍ೖΕܰ͘ᖱΊ·̇͢ ࣽΔ ɹࣽोͷࡐྉΛೖΕಅͨ͠ΒփोΛऔΓനୌΛೖΕࠞͥதڧՐͷ··མ֖͠Λࣽ͠ो͕ແ͘ͳΔ·Ͱ ఔࣽ٧Ί·͢ɻࣽ٧ΊͨॴͰҰࠞͥɺ࠶མ֖͠Λͯࣽ͠ो͕ͳ͘ͳΔ·Ͱ༷ࢠΛݟͳ͕Β ߋʹҐࣽ٧Ί͍͖ͯ·͢ɻࣽो͕ແ͘ͳͬͨΒՐΛࢭΊམ֖͠Λͨ͠··ؒɺৠΒ͠·̇͢ຯ ͕ߋʹછΈࠐΈ·͢ΐʂ͜͜େࣄʂͦͯ͠Ͱ̇͢
?Т? http://cookpad.com/recipe/1519259
ಡΈ͍͢ຊޠͷϙΠϯτ ͭͷஈམʹͭͷ༰ʹߜΔ μϥμϥͱ͍จষΛॻ͔ͳ͍ ൱ఆจΑΓߠఆจΛ͏ ͘ॻ͘
ಡΈखʹΘΔݴ༿ΛબͿ
ಡΈ͍͢ຊޠͷϙΠϯτ ͭͷஈམʹͭͷ༰ʹߜΔ ɹɹॲཧΛؔͱͯ͠Γग़͢୯Ұͷݪଇ μϥμϥͱ͍จষΛॻ͔ͳ͍ ɹɹؔ࠷େߦҎ ൱ఆจΑΓߠఆจΛ͏ ɹɹOPU)FBWZ6TFS
Ͱͳ͘JT)FBWZ6TFS ͘ॻ͘ ɹɹࡾ߲ԋࢉࢠΛ͏υɾϞϧΨϯͰׂ͢Δ ಡΈखʹΘΔݴ༿ΛબͿ ɹɹదͳม໊Λ͏
ಡΈ͍͢ιʔείʔυΛॻ͘ʹʁ 㾎 ॲཧΛׂ͢Δ 㾎 Θ͔Γ͍͢ม໊Λ͚ͭΔ 㾎 దͳίϝϯτΛ͚ͭΔ 㾎 ΠϯσϯτΛదʹͱΔ 㾎
൱ఆΑΓߠఆΛ͏ 㾎 ωετΛઙ͘͢Δ 㾎 ؆ܿʹॻ͘ 㾎 HPUPจΛΘͳ͍ 㾎 είʔϓͷൣғ࠷খݶʹ͢Δ 㾎 ୯Ұͷݪଇ 㾎 ίʔυΛখ͘͞อͭ 㾎 ࣮ͷҙਤΛ͢ 㾎 ໊લ͖Ҿ 㾎 Ҿͷͭ·Ͱ 㾎 ૬ޓࢀরΛආ͚Δ 㾎 ίʔϧόοΫࠈΛආ͚Δ 㾎 ΦϒδΣΫτͷґଘΛԼ͛Δ 㾎 ͳͲ
ࢀߟਤॻ
ಡΈ͍͢ιʔείʔυΛॻ͘ʹʁ 㾎 ॲཧΛׂ͢Δ 㾎 Θ͔Γ͍͢ม໊Λ͚ͭΔ 㾎 దͳίϝϯτΛ͚ͭΔ 㾎 ΠϯσϯτΛదʹͱΔ 㾎
൱ఆΑΓߠఆΛ͏ 㾎 ωετΛઙ͘͢Δ 㾎 ؆ܿʹॻ͘ 㾎 HPUPจΛΘͳ͍ 㾎 είʔϓͷൣғ࠷খݶʹ͢Δ 㾎 ୯Ұͷݪଇ 㾎 ίʔυΛখ͘͞อͭ 㾎 ࣮ͷҙਤΛ͢ 㾎 ໊લ͖Ҿ 㾎 Ҿͷͭ·Ͱ 㾎 ૬ޓࢀরΛආ͚Δ 㾎 ίʔϧόοΫࠈΛආ͚Δ 㾎 ΦϒδΣΫτͷґଘΛԼ͛Δ 㾎 ͳͲ
͔Γ͍͢ม໊Λ͚ͭΔ // Is it an array? -> isArray -> Yes
/ No (True / False) function isArray (arrayObject) {} // Does this array contain the item ? => Yes / No (True / False) function contains(array, item) {} // ಈࢺ + తޠ function fetchBooks () {} // ಈࢺΛબͿ => ӳޠྗ + ͕ࣝඞཁ function push() / append() / put() / add() / enqueue() / etc // ಈࢺ͡Όͳͯ͘໌֬ͳ߹ function api () {}
ಡΈ͍͢ιʔείʔυΛॻ͘ʹʁ 㾎 ॲཧΛׂ͢Δ 㾎 Θ͔Γ͍͢ม໊Λ͚ͭΔ 㾎 దͳίϝϯτΛ͚ͭΔ 㾎 ΠϯσϯτΛదʹͱΔ 㾎
൱ఆΑΓߠఆΛ͏ 㾎 ωετΛઙ͘͢Δ 㾎 ؆ܿʹॻ͘ 㾎 HPUPจΛΘͳ͍ 㾎 είʔϓͷൣғ࠷খݶʹ͢Δ 㾎 ୯Ұͷݪଇ 㾎 ίʔυΛখ͘͞อͭ 㾎 ࣮ͷҙਤΛ͢ 㾎 ໊લ͖Ҿ 㾎 Ҿͷͭ·Ͱ 㾎 ૬ޓࢀরΛආ͚Δ 㾎 ίʔϧόοΫࠈΛආ͚Δ 㾎 ΦϒδΣΫτͷґଘΛԼ͛Δ 㾎 ͳͲ
νʔϜͷΛଅ͢ https://flic.kr/p/7aFKv2
νʔϜͷΛଅ͢ ᶃΈΜͳͰϨϏϡʔ͢Δ w ଞͷਓͷίʔυΛݟֶͯͿ w ଞͷਓͷࢦఠΛݟֶͯͿ w ࢦఠͰ͖Δྔ࣭ͷมԽ͔ΒεΩϧΞοϓ͕࣮ײͰ͖Δ
https://flic.kr/p/aAvcFL Summary
·ͱΊ ᶃόά͕ͳ͍ w ༷௨Γʹಈ͖ɺΤϥʔέʔεͷߟྀ͋Δ w কདྷతʹόάʹͳΓͮΒ͍ ᶄಡΈ͍͢ w ຊޠͷจষͱҰॹ w
ͨ͘͞Μͷϊϋ͕ଘࡏ͢Δʢม໊ͷ͚ํͳͲʣ ᶅνʔϜͷΛଅ͢ w ΈΜͳͰϨϏϡʔ͢Δ
One More Step
ใॲཧٕज़ऀࢼݧc*1"
$ISPNFΞοϓσʔτc$ISPNJVN#MPH
σβΠϯύλʔϯc5&$)4$03&
͏ͭϓϩάϥϛϯάݴޠΛ
Thank you http://www.yoheim.net @yoheiMune https://flic.kr/p/mzmQK2