Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
20190122_vdom.pdf
Search
Sponsored
·
SiteGround - Reliable hosting with speed, security, and support you can count on.
→
ozaki25
January 22, 2019
Technology
0
73
20190122_vdom.pdf
ozaki25
January 22, 2019
Tweet
Share
More Decks by ozaki25
See All by ozaki25
20210526_a11y.pdf
ozaki25
0
200
20210525_react_next.pdf
ozaki25
0
150
Webフロントエンドはなぜ複雑なのか
ozaki25
1
140
utility first css
ozaki25
0
110
20201225_how_to_learn_technology.pdf
ozaki25
0
170
20201124_blitz.pdf
ozaki25
0
100
20200727_liff_app.pdf
ozaki25
1
660
20200721_web_vitals.pdf
ozaki25
0
120
20200624_web_otp_api.pdf
ozaki25
1
140
Other Decks in Technology
See All in Technology
小さく始めるBCP ― 多プロダクト環境で始める最初の一歩
kekke_n
1
420
Codex 5.3 と Opus 4.6 にコーポレートサイトを作らせてみた / Codex 5.3 vs Opus 4.6
ama_ch
0
150
仕様書駆動AI開発の実践: Issue→Skill→PRテンプレで 再現性を作る
knishioka
2
660
Kiro IDEのドキュメントを全部読んだので地味だけどちょっと嬉しい機能を紹介する
khmoryz
0
200
AIと新時代を切り拓く。これからのSREとメルカリIBISの挑戦
0gm
0
1.1k
AI駆動開発を事業のコアに置く
tasukuonizawa
1
200
Bedrock PolicyでAmazon Bedrock Guardrails利用を強制してみた
yuu551
0
240
Bill One 開発エンジニア 紹介資料
sansan33
PRO
5
17k
AIエージェントを開発しよう!-AgentCore活用の勘所-
yukiogawa
0
170
Webhook best practices for rock solid and resilient deployments
glaforge
1
290
OWASP Top 10:2025 リリースと 少しの日本語化にまつわる裏話
okdt
PRO
3
770
OCI Database Management サービス詳細
oracle4engineer
PRO
1
7.4k
Featured
See All Featured
Performance Is Good for Brains [We Love Speed 2024]
tammyeverts
12
1.4k
Put a Button on it: Removing Barriers to Going Fast.
kastner
60
4.2k
How to Create Impact in a Changing Tech Landscape [PerfNow 2023]
tammyeverts
55
3.2k
Let's Do A Bunch of Simple Stuff to Make Websites Faster
chriscoyier
508
140k
The Curse of the Amulet
leimatthew05
1
8.6k
Paper Plane (Part 1)
katiecoart
PRO
0
4.2k
Save Time (by Creating Custom Rails Generators)
garrettdimon
PRO
32
2.1k
The Psychology of Web Performance [Beyond Tellerrand 2023]
tammyeverts
49
3.3k
ReactJS: Keep Simple. Everything can be a component!
pedronauck
666
130k
GraphQLとの向き合い方2022年版
quramy
50
14k
How To Speak Unicorn (iThemes Webinar)
marktimemedia
1
380
End of SEO as We Know It (SMX Advanced Version)
ipullrank
3
3.9k
Transcript
Ծ%0.ֵ໋
࣍ ࠓճ͢༰ Ծ%0.͕ඞཁͱ͞ΕΔഎܠͱྺ࢙ Ծ%0.ͷΈ ·ͱΊ
ࠓճ͢༰
ࠓճ͢༰ w 8&# %#13&447PMͷʮԾ%0. ֵ໋ʯͱ͍͏ίϥϜ͕ݩωλͰ͢ w ϕʔε্هίϥϜͰ͕͢ݴٴ͞Εͯͳ͍෦ ʹؔͯ͠ಠࣗͷݟղଟؚ͘Έ·͢ w ΦϦδφϧ͕ಡΈ͚ͨΕିͤΔͷͰֻ
͚͍ͯͩ͘͞ https://gihyo.jp/magazine/wdpress/archive/2018/vol106
Ծ%0.͕ඞཁͱ͞ΕΔഎܠͱྺ࢙
%0.ͷྺ࢙ᶃ ).5-ͷੜ ࠒ w ͱͱݚڀऀ͚ͷจΛॻͨ͘ΊʹΘΕ͍ͯͨ w λΠτϧ͕͋Γ UJUMF ɺݟग़͕͋͠Γ
I I ɺύϥά ϥϑ͕͋Γ Q w Πϯλʔωοτͷൃలʹͬͯ༻్͕͕͍ͬͯ͘
%0.ͷྺ࢙ᶄ %0. %PDVNFOU0CKFDU.PEFM ͷੜ w %0.ͱ w )5.-Λಈతʹ੍ޚ͢Δ"1*ͷ༷
w ඪ४Խஂମ8$ʹΑͬͯࡦఆ͞ΕΔ
%0.ͷྺ࢙ᶄ %0. %PDVNFOU0CKFDU.PEFM ͷੜ w %0.ͱ w )5.-Λಈతʹ੍ޚ͢Δ"1*ͷ༷
w ඪ४Խஂମ8$ʹΑͬͯࡦఆ͞ΕΔ +BWB4DSJQUʹΑͬͯ)5.-Λಈతʹ੍ޚͰ͖ΔΑ͏ʹͳΔ ಈతʹ੍ޚͰ͖ΔΑ͏ʹͳΔ ϖʔδભҠͤͣʹ)5.-Λॻ͑ΒΕΔ
Ծ%0.ొલᶃ "KBYֵ໋ ࠒ w (PPHMF.BQTͷֵ৽ੑ w ΞΫγϣϯʹԠͯ͡ಈతʹαʔόΞΫηε ͦͷϨεϙϯεʹԠͯ͡ϖʔδΛॻ͖͑Δ w
K2VFSZͷ࣌ w ϒϥβؒͷඇޓΛٵऩͯ͘͠ΕΔ w ࣌ϒϥβؒͷޓੑ͕͔ͬͨ͠
Ծ%0.ొલᶄ 8FCٕज़ͷधཁͷߴ·Γ w J1IPOFͷ'MBTIඇࡌܾఆ ˞ w ϦονϝσΟΞͷ࣮धཁ͕+BWB4DSJQUʹूத w /PEFKTOQNΤίγεςϜͷख़
ࠒʙ w +BWB4DSJQUͷݴޠతͳශऑ͞ΛΧόʔ w $P⒎FF4DSJQU #SPXTFSJGZ ※ https://www.apple.com/hotnews/thoughts-on-flash/
·ͱΊ w %0.ʹΑͬͯ)5.-ಈతͳͷʹ w 'MBTIͷସͱͯ͠+BWB4DSJQUͷཁٻ͕ෳࡶԽ w /PEFKTOQNʹΑΔΤίγεςϜͷख़ͱෳࡶԽ
Ծ%0.ԿΛղܾ͢Δͷ͔
ΫϥΠΞϯταΠυٕज़ͷ՝ w K2VFSZͷΑ͏ͳԾ%0.Ͱͳ͍ैདྷͷٕज़ͷ՝ w ن͕େ͖͘ෳࡶԽ͢ΔͱϝϯςࠔͰٕज़తෛ࠴ͱͳΔ ෳࡶͳཁٻʹ͑͏ΔΞʔΩςΫνϟ͕ඞཁ
ೖग़ྗͷΞτϛοΫੑ αʔόαΠυͷ߹ w ΞτϛοΫੑ͕͋Δ w ϦΫΤετϨεϙϯε㲈8FCϖʔδ w ಉ͡63-ʹΞΫηε͢Ε ಉ͡ϖʔδ͕දࣔ͞ΕΔ
αʔό Ϸμεφϕ(URL) ϹφϪЀφ(HTML) ϒϥβ ϹЀύϷЀν WebϧЄυ
ೖग़ྗͷΞτϛοΫੑ ΫϥΠΞϯταΠυͷ߹ w ΞτϛοΫੑ͕ͳ͍ w ϦΫΤετϨεϙϯε㱠8FCϖʔδ w αʔόαΠυͰੜͨ͠)5.-ॳظঢ় ଶʹ͗͢ͳ͍ w
%0.ૢ࡞ʹΑΓ͋ΒΏΔঢ়ଶॻ͖ ͑ΒΕಘΔ αʔό Ϸμεφϕ(URL) ϹφϪЀφ(HTML) ϒϥβ ϹЀύϷЀν WebϧЄυ DOM 䨗䟵͞ DOM 䨗䟵͞ WebϧЄυ WebϧЄυ
ΫϥΠΞϯταΠυʹΞτϛοΫੑΛ "TJT w ΫϥΠΞϯταΠυ༷ʑͳཁ ҼͰঢ়ଶ͕มΘΔ w ϘλϯΛΫϦοΫͨ͠Βʙɺ "KBYͰσʔλΛऔಘͨ͠Βʙ w ঢ়ଶ͕มΘΔʹ%0.ͷ্ॻ
͖͕ܧ͗͞Ε͍ͯ͘ 5PCF w ঢ়ଶ͕ߋ৽͞ΕΔʹঢ়ଶʹଈ ͨ͠Ұҙͳ7JFXΛग़ྗ͍ͨ͠ w ʮೖྗʹج͍ͮͨঢ়ଶܾఆͷΞ τϛοΫੑʯΛखʹೖΕ͍ͨ
ΫϥΠΞϯταΠυͷΞτϛοΫੑ༗ແͷྫ ϘλϯΛΫϦοΫ͢Δͱཁૉ͕૿͑Δαϯϓϧ Ճ Hello Ճ Hello Hello ΫϦοΫ
μϷϐμͫ͵ͩ;Ψ䭥ᎣͭͼᥝᔰΨ᭄ےͯΡ ίϕϬϐμ͚͢ ίϕϬϐμ͘͢Ρ Ճ Hello Ճ Hello Hello ΫϦοΫ \DPVOU^ ˣ \DPVOU^ μϷϐμͫ͵Οᇫ䙪ΨๅෛͯΡ ᇫ䙪ΨزኮᶎΨ䯤塈ͭൈኮͯΡ ᇫ䙪
ΫϥΠΞϯταΠυͷΞτϛοΫੑ༗ແͷྫ ϘλϯΛΫϦοΫ͢Δͱཁૉ͕૿͑Δαϯϓϧ Ճ Hello Ճ Hello Hello ΫϦοΫ
μϷϐμͫ͵ͩ;Ψ䭥ᎣͭͼᥝᔰΨ᭄ےͯΡ ίϕϬϐμ͚͢ ίϕϬϐμ͘͢Ρ Ճ Hello Ճ Hello Hello ΫϦοΫ \DPVOU^ ˣ \DPVOU^ μϷϐμͫ͵Οᇫ䙪ΨๅෛͯΡ ᇫ䙪ΨزኮᶎΨ䯤塈ͭൈኮͯΡ ᇫ䙪 ඳը༰ͷܧ͗͠Ͱͳ͘ ঢ়ଶΛݩʹશମΛ࠶ߏங͢Δ
ΫϥΠΞϯταΠυͷΞτϛοΫੑ༗ແͷྫ ϘλϯΛΫϦοΫ͢Δͱཁૉ͕૿͑Δαϯϓϧ Ճ Hello Ճ Hello Hello ΫϦοΫ
μϷϐμͫ͵ΟᥝᔰΨ᭄ےͯΡ ίϕϬϐμ͚͢ ίϕϬϐμ͘͢Ρ Ճ Hello Ճ Hello Hello ΫϦοΫ \DPVOU^ ˣ \DPVOU^ μϷϐμͫ͵Οᇫ䙪ΨๅෛͯΡ ᇫ䙪ΨزኮᶎΨ䯤塈ͭൈኮͯΡ ঢ়ଶΛ֬ఆ͢Δεςοϓͱ )5.-Λߋ৽͢Δεςοϓ͕ ໌֬ʹ͞ΕΔ ඳը༰ͷܧ͗͠Ͱͳ͘ ঢ়ଶΛݩʹશମΛ࠶ߏங͢Δ
ΫϥΠΞϯταΠυͷΞτϛοΫੑ༗ແͷྫ ϘλϯΛΫϦοΫ͢Δͱཁૉ͕૿͑Δαϯϓϧ Ճ Hello Ճ Hello Hello ΫϦοΫ
μϷϐμͫ͵ΟᥝᔰΨ᭄ےͯΡ ίϕϬϐμ͚͢ ίϕϬϐμ͘͢Ρ Ճ Hello Ճ Hello Hello ΫϦοΫ \DPVOU^ ˣ \DPVOU^ μϷϐμͫ͵Οᇫ䙪ΨๅෛͯΡ ᇫ䙪ΨزኮᶎΨ䯤塈ͭൈኮͯΡ ͜ΕΛ࣮ݱ͢ΔͨΊʹ ͔ܽͤͳ͍ͳٕज़͕Ծ%0.
ΞτϛοΫੑ͕͋ΔͱԿ͕͍͍ͷ͔ ۀͰ͖Δ w ϓϩάϥϚʔͷؔ৺ঢ়ଶཧ w σβΠφʔͷؔ৺ೖྗΛݩʹͨ͠ग़ྗ ϝϯςφϏϦςΟ্ w 7JFXͷ࠶ݱੑ͕୲อ͞ΕΔͷͰཧ͍͢͠ w
7JFX͕Γ͞ΕΔͷͰঢ়ଶཧͷςετ͕͍͢͠
Ծ%0.ͷΈ
ͳͥԾ%0.͕ඞཁ͔ w ΞτϛοΫੑ͕͋ΔΞʔΩςΫνϟ w ঢ়ଶΛͱʹը໘શମΛ࠶ߏங͢Δ w ը໘શମͷॻ͖͑ίετ͕ߴ͘ϢʔβϏϦςΟଛͳ͏ Ծ%0.Λ͏͜ͱͰ͜ͷ͕ղফ͞ΕΔ
Ծ%0.ͱ3FBM%0. 3FBM%0. w ը໘ʹඳը͞Ε͍ͯΔ%0.π Ϧʔͷ͜ͱ Ծ%0. ڱٛ
w 3FBM%0.ͱͰରԠ͢Δߏ ମͰϝϞϦ্ʹอ͍࣋ͯ͠Δ 9 : ; 9 : ;
Ծ%0.ͷΞϧΰϦζϜ RealDOM 㫪మDOM \DPVOU^ w ϘλϯΛΫϦοΫ͢Δͱཁૉ͕૿͑Δαϯϓϧ CVUUPO )FMMP EJW CVUUPO
)FMMP EJW
Ծ%0.ͷΞϧΰϦζϜ RealDOM 㫪మDOM \DPVOU^ w ϘλϯΛΫϦοΫ͢Δͱཁૉ͕૿͑Δαϯϓϧ CVUUPO )FMMP EJW CVUUPO
)FMMP EJW ΫϦοΫ
Ծ%0.ͷΞϧΰϦζϜ RealDOM 㫪మDOM \DPVOU^ ˣ \DPVOU^ w ϘλϯΛΫϦοΫ͢Δͱཁૉ͕૿͑Δαϯϓϧ CVUUPO )FMMP
EJW CVUUPO )FMMP EJW ΫϦοΫ ঢ়ଶΛߋ৽
Ծ%0.ͷΞϧΰϦζϜ RealDOM 㫪మDOM \DPVOU^ w ϘλϯΛΫϦοΫ͢Δͱཁૉ͕૿͑Δαϯϓϧ CVUUPO )FMMP EJW CVUUPO
)FMMP EJW before CVUUPO )FMMP EJW )FMMP ߋ৽ޙͷঢ়ଶΛݩʹ Ծ%0.Λ࠶ߏங after
Ծ%0.ͷΞϧΰϦζϜ RealDOM 㫪మDOM \DPVOU^ w ϘλϯΛΫϦοΫ͢Δͱཁૉ͕૿͑Δαϯϓϧ CVUUPO )FMMP EJW CVUUPO
)FMMP EJW before CVUUPO )FMMP EJW )FMMP after ࠩΛൺֱ͢Δ
Ծ%0.ͷΞϧΰϦζϜ RealDOM 㫪మDOM \DPVOU^ w ϘλϯΛΫϦοΫ͢Δͱཁૉ͕૿͑Δαϯϓϧ CVUUPO )FMMP EJW before
CVUUPO )FMMP EJW )FMMP after ࠩΛ3FBM%0.ʹ өͤ͞Δ CVUUPO )FMMP EJW )FMMP
Ծ%0.ͷΞϧΰϦζϜ RealDOM 㫪మDOM \DPVOU^ w ϘλϯΛΫϦοΫ͢Δͱཁૉ͕૿͑Δαϯϓϧ CVUUPO )FMMP EJW )FMMP
CVUUPO )FMMP EJW )FMMP ߋ৽ྃ
Ծ%0.ͷΞϧΰϦζϜ RealDOM 㫪మDOM \DPVOU^ w ϘλϯΛΫϦοΫ͢Δͱཁૉ͕૿͑Δαϯϓϧ CVUUPO )FMMP EJW )FMMP
CVUUPO )FMMP EJW )FMMP 3FBM%0.ͷߋ৽࠷খݶͳͷͰॻ͑ͷίετ࠷খݶ
Ծ%0.Λ༻͍ͨϑϨʔϜϫʔΫ w 3FBDU͕ઌۦ͚తͳϑϨʔϜϫʔΫͰ͋Δ w ࠷ۙͷ41"ϑϨʔϜϫʔΫͲΕԾ%0.Λ࠾༻͍ͯ͠Δ w ˞Ծ%0.ͷΞϧΰϦζϜͷ͜ͱΛ୯ʹԾ%0. ٛ
ͱ͍͏ ͜ͱ͋Δ
·ͱΊ
·ͱΊ w ΫϥΠΞϯταΠυͷཁٻෳࡶԽ͖͍ͯͯ͠Δ w 'MBTIͷସͱͯ͠ͷ+BWB4DSJQU w ෳࡶͳཁٻΛܧଓతʹຬ͍ͨͯ͘͠ඞཁ͕͋Δ w ΞτϛοΫੑͷ͋ΔΞʔΩςΫνϟ͕ඞཁ w
Ծ%0.Λ༻͍Δ͜ͱͰ͜ΕΒͷཁٻΛຬͨ͢͜ͱ͕Ͱ͖Δ
ิ w ίϥϜશষͰ͕ͨ͠ࠓճͨ͠ͷষʙষͰ͢ w ষʹΫϥΠΞϯταΠυ.7$͔Β'MVYͷมભͷ w ষʹ8FCҎ֎ͷԾ%0.ͷద༻ͷ͕ॻ͍ͯ͋Γ·͢
͋Γ͕ͱ͏͍͟͝·ͨ͠