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
The Dark Side of JavaScript
Search
Lucas Santos
May 17, 2021
Technology
97
0
Share
Embed
Copy iframe code
Copy JS code
Copy link
Start on current slide
The Dark Side of JavaScript
Lucas Santos
May 17, 2021
More Decks by Lucas Santos
See All by Lucas Santos
The Hitchhiker's Guide for an Amazing API with TypeScript
khaosdoctor
0
120
Escalando globalmente com TypeScript e JavaScript na Klarna
khaosdoctor
0
220
The future of JavaScript
khaosdoctor
0
96
TypeScript tips that could save your life
khaosdoctor
0
250
É hora de falar sobre Deno
khaosdoctor
0
93
JS Software testing for beginners
khaosdoctor
0
100
Ambientes dinâmicos com GitHub Actions
khaosdoctor
0
69
Integrating Containers Into JavaScript
khaosdoctor
0
86
Entendendo o ecossistema de containers
khaosdoctor
1
1.1k
Other Decks in Technology
See All in Technology
認知負荷をGemini で溶かす — GKE 基盤「Orbit」における AI エージェントの実践
sansantech
PRO
1
270
ガバメントクラウドでのランサムウェア対策
techniczna
2
1k
Data Hubグループ 紹介資料
sansan33
PRO
0
3.2k
SO-101×VLAによる3色キューブのピック&プレース
abeja
0
160
Forza Horizon 6 のテレメトリ機能で 自動運転に使えそうな学習データを集める話
henjin0
0
150
新しい SLO が良い感じにハマっている話
z63d
5
2.2k
20分でわかるセキュアAPI
nwiizo
1
200
FORENSIA: ローカルLLMフォレンジックハーネス
sumeshi
2
350
AIは実装を速くする。では、私たちは何を今作るべきか?-立場を越えてリリースに向き合ったチーム開発の実践 / 20260801 Hiromi Nakaya and Naoki Takahashi
shift_evolve
PRO
3
450
システム思考で問題に対処する
yussak
0
210
AI ネイティブな組織に Gemini Enterprise Agent Platform がなぜ必要なのか
asei
1
190
Goでデータパイプラインを作ろう
sansantech
PRO
1
360
Featured
See All Featured
Measuring Dark Social's Impact On Conversion and Attribution
stephenakadiri
2
250
Fight the Zombie Pattern Library - RWD Summit 2016
marcelosomers
234
17k
Large-scale JavaScript Application Architecture
addyosmani
515
110k
YesSQL, Process and Tooling at Scale
rocio
174
15k
Six Lessons from altMBA
skipperchong
29
4.4k
The Organizational Zoo: Understanding Human Behavior Agility Through Metaphoric Constructive Conversations (based on the works of Arthur Shelley, Ph.D)
kimpetersen
PRO
0
400
Agile Leadership in an Agile Organization
kimpetersen
PRO
0
200
Thoughts on Productivity
jonyablonski
76
5.3k
Rebuilding a faster, lazier Slack
samanthasiow
85
9.6k
Discover your Explorer Soul
emna__ayadi
2
1.2k
Fantastic passwords and where to find them - at NoRuKo
philnash
52
3.8k
Crafting Experiences
bethany
1
240
Transcript
Javascript as you never saw before
cloud advocate_ who am I_
[email protected]
{twitter, facebook, linkedin…}.lsantos.dev
The magic JS
Removing Callbacks
The Dark Side of Javascript JS
Symbols
None
None
None
BUT BE AWARE_
Small usage example
Other usage example in Node.js source code bit.ly/nodejs-symbol Check it
out!
Async Iterators_
None
None
None
None
None
None
None
Promise.finally
None
Promise.allSettled
None
None
Ranges
None
None
None
Readonly properties_
Object.defineProperty
None
Object.defineProperties
‘age’ hasn’t been shown because it’s not enumerable
Private class fields_
None
None
Dynamic function creation_
None
None
in operator_
None
None
Dynamic instances by reflection_
None
None
None
Bitwise Operators_
AND
None
What!?
A B C D Result X 0 1 0 1
5 Y 0 0 0 1 1 Z 0 0 0 1 1
String as binary data
OR
None
A B C D Result X 0 1 0 1
5 Y 0 0 0 1 1 Z 0 1 0 1 5
XOR
None
A B C D Result X 0 1 0 1
5 Y 0 0 0 1 1 Z 0 1 0 0 4
Cryptography
None
NOT
None
A B C D Resultado X 0 1 0 1
5 Z 1 0 1 0 10
Existence condition
None
SHIFT
None
Multiply and divide
None
refs_ - imasters.com.br/desenvolvimento/o-lado-escuro-javascript - medium.com/trainingcenter/entendendo-promises-de-uma-vez-por-todas-3 2442ec725c2 - imasters.com.br/desenvolvimento/campos-publicos-e-privados-em-classes-j avascript-o-que-vem-por-ai-no-esnext -
imasters.com.br/javascript/futuro-das-promises-no-javascript - medium.com/trainingcenter/iterators-em-javascript-880adef14495 - medium.com/trainingcenter/reflection-em-javascript-73fc0e702e2 - developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objec ts/Reflect - slides.lsantos.dev/desmistificando-heranca-e-prototipos-no-javascript - dev.to/khaosdoctor/entendendo-async-iterators-1opo
thank you_ info.lsantos.dev