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
==と===を調べてみた
Search
igayamaguchi
April 27, 2017
Technology
0
520
==と===を調べてみた
We Are JavaScripters! @6th の登壇資料です。
igayamaguchi
April 27, 2017
Tweet
Share
More Decks by igayamaguchi
See All by igayamaguchi
Vue.js、Nuxtの機能を使い、 大量のコピペコードをリファクタリングする
igayamaguchi
3
5.9k
一休/Yahooトラベル、マルチブランドにまたがるデザインシステム
igayamaguchi
1
590
VeeValidate 3
igayamaguchi
3
600
Other Decks in Technology
See All in Technology
Obsidian応用活用術
onikun94
0
360
Skrub: machine-learning with dataframes
gaelvaroquaux
0
110
研究開発と製品開発、両利きのロボティクス
youtalk
1
390
Bye-Bye Query Spaghetti: Write Queries You'll Actually Understand Using Pipelined SQL Syntax
tobiaslampertlotum
0
130
ヘブンバーンズレッドのレンダリングパイプライン刷新
gree_tech
PRO
0
500
5年目から始める Vue3 サイト改善 #frontendo
tacck
PRO
3
160
JavaScript 研修
recruitengineers
PRO
6
1.5k
進捗
ydah
2
230
Function Body Macros で、SwiftUI の View に Accessibility Identifier を自動付与する/Function Body Macros: Autogenerate accessibility identifiers for SwiftUI Views
miichan
2
160
自作JSエンジンに推しプロポーザルを実装したい!
sajikix
1
130
AI開発ツールCreateがAnythingになったよ
tendasato
0
100
AWSで推進するデータマネジメント
kawanago
0
930
Featured
See All Featured
Git: the NoSQL Database
bkeepers
PRO
431
66k
JavaScript: Past, Present, and Future - NDC Porto 2020
reverentgeek
51
5.6k
BBQ
matthewcrist
89
9.8k
Responsive Adventures: Dirty Tricks From The Dark Corners of Front-End
smashingmag
252
21k
Put a Button on it: Removing Barriers to Going Fast.
kastner
60
4k
Fashionably flexible responsive web design (full day workshop)
malarkey
407
66k
[RailsConf 2023] Rails as a piece of cake
palkan
56
5.8k
Producing Creativity
orderedlist
PRO
347
40k
4 Signs Your Business is Dying
shpigford
184
22k
Dealing with People You Can't Stand - Big Design 2015
cassininazir
367
27k
Performance Is Good for Brains [We Love Speed 2024]
tammyeverts
11
1.1k
Bootstrapping a Software Product
garrettdimon
PRO
307
110k
Transcript
ͱ !*HBOJO5FB
ͭͷԋࢉࢠ ᐆດͳൺֱ ݫີͳൺֱ // ᐆດͳൺֱͰܕΛൺֱ͠ͳ͍ > 1 == '1' true
// ݫີͳൺֱͰܕൺֱ͢Δ > 1 === '1' false
ࣗݾհ w ࢁޱকر w ޚϊਫͷ8&#αΠτडୗ w ࠷ۙ$ "41/&5.7$ ɺ 1)1
w 7VFKTνϣοτ w झຯͰ-BSBWFM w 5XJUUFS*%!*HBOJO5FB
&$."4DSJQU
ͷॲཧͷྲྀΕ ܕͷൺֱ ͷൺֱ
ͷॲཧͷྲྀΕ ಉ͡ܕͰ͋Εͷൺֱ ͷᐆດͳൺֱ
ϓϦϛςΟϒܕͷᐆດͳൺֱ ยํͷ͕OVMMͰ͏ยํͷ͕ VOEFpOFEͷ߹ɺUSVF ยํͷ͕Ͱ͏ยํ͕จࣈྻͷ ߹ɺจࣈྻΛʹม͔ͯ͠Β࠶ ͕ਅِͷ߹ɺʹม͔ͯ͠Β
ࢀরܕͷᐆດͳൺֱ WBMVF0Gϝιου ϓϦϛςΟϒܕ͕ฦΔ߹ɺͦͷΛ ༻ͯ͠࠶ > [1, 2, 3].valueOf() [ 1,
2, 3 ] > {a: 1, b: 2, c: 3}.valueOf() { a: 1, b: 2, c: 3 }
ࢀরܕͷᐆດͳൺֱ UP4USJOHϝιου ϓϦϛςΟϒܕ͕ฦΔ߹ɺͦͷΛ ༻ͯ͠࠶ > [1, 2, 3].toString() '1,2,3' >
({a: 1, b: 2, c: 3}.toString()) '[object Object]'
֘͢Δͷ͕ ແ͚ΕGBMTF
ΊΑ͏