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
London JS: The State of JavaScript
Search
Jack Franklin
May 27, 2015
Technology
27k
9
Share
Embed
Copy iframe code
Copy JS code
Copy link
Start on current slide
London JS: The State of JavaScript
Jack Franklin
May 27, 2015
More Decks by Jack Franklin
See All by Jack Franklin
Advanced React Meetup: Testing JavaScript
jackfranklin
1
270
Components on the Web: Frontend NE
jackfranklin
1
850
ReactiveConf: Lessons Migrating Complex Software
jackfranklin
0
520
Front Trends: Migrating complex software
jackfranklin
1
850
Migrating from Angular to React: Manc React
jackfranklin
1
210
Half Stack Fest: Webpack
jackfranklin
4
600
FullStackFest: Elm for JS Developers
jackfranklin
1
270
Codelicious: Intro to ES2015
jackfranklin
0
450
PolyConf: Elm for JS Developers
jackfranklin
0
300
Other Decks in Technology
See All in Technology
気軽に使える"情報のハブ"としてのNotion活用 〜フロー情報の集積点 と、 Claude Code × Notion AI〜
syucream
1
160
Oracle AI Database@Google Cloud:サービス概要のご紹介
oracle4engineer
PRO
6
1.5k
LayerX コーポレートエンジニアリング室におけるサプライチェーンセキュリティへの取り組み / Supply Chain Security at LayerX Corporate Engineering
yuyatakeyama
2
680
When Platform Engineering Meets GenAI
sucitw
0
130
データサイエンスを価値につなげるプロジェクト設計 〜 DS一年目が現場で得た気づき 〜
ysd113
1
280
Bucharest Tech Week 2026 - Reinventing testing practices in the AI era
edeandrea
PRO
1
170
Kiro Ambassador を目指す話
k_adachi_01
0
110
小さく始める AI 活用推進 ― 日経電子版 Web チームの事例/nikkei-tech-talk47
nikkei_engineer_recruiting
0
300
AI-DLCを “そのまま導入しなかった”話 ~組織に合わせてアジャストした 私たちの実践共有~
hiroramos4
PRO
0
220
自宅LLMの話
jacopen
1
660
秘密度ラベル初心者が第1歩でつまづかないための「設計・運用」ポイント
seafay
PRO
0
250
あなたの知らないPDFのアクセシビリティ
lycorptech_jp
PRO
0
220
Featured
See All Featured
How to Create Impact in a Changing Tech Landscape [PerfNow 2023]
tammyeverts
55
3.4k
Visualization
eitanlees
152
17k
Building Better People: How to give real-time feedback that sticks.
wjessup
370
20k
The Art of Programming - Codeland 2020
erikaheidi
57
14k
CSS Pre-Processors: Stylus, Less & Sass
bermonpainter
360
30k
Between Models and Reality
mayunak
4
340
Creating an realtime collaboration tool: Agile Flush - .NET Oxford
marcduiker
35
2.5k
Max Prin - Stacking Signals: How International SEO Comes Together (And Falls Apart)
techseoconnect
PRO
0
180
Kristin Tynski - Automating Marketing Tasks With AI
techseoconnect
PRO
0
270
brightonSEO & MeasureFest 2025 - Christian Goodrich - Winning strategies for Black Friday CRO & PPC
cargoodrich
3
730
Gemini Prompt Engineering: Practical Techniques for Tangible AI Outcomes
mfonobong
2
440
Are puppies a ranking factor?
jonoalderson
1
3.6k
Transcript
The State of JavaScript
@Jack_Franklin
None
https://gocardless.com/blog/how-we-built-the-new-gocardless.com/
things people keep tweeting 4
it’s difficult to get into front end web development 1
it’s difficult to get into front end web development it’s
difficult to build client side applications
HTML + CSS + the odd bit of jQuery
complexity for complexity’s sake
None
it’s difficult to build client side applications 2
building client side applications is complex
http://www.smashingmagazine.com/2013/06/11/front-end-ops/ “application logic is being deferred to the client side.
For some reason, though, operations folks aren’t going with it”
moving work to the client necessarily leads to a more
involved, complex front end workflow (and that’s not a bad thing)
I constantly feel that I'm behind on my homework having
to evaluate new libraries and frameworks showing up https://news.ycombinator.com/item?id=9604203 3
None
"But how can we get anything done when we’re spending
most of our time learning?" http://www.breck-mckye.com/blog/2014/12/the-state-of-javascript- in-2015/
Stop trying to learn. Build things in whatever you’re comfortable
with.
“As you get better, these new frameworks and tools become
way less daunting and the anxiety caused by things moving too fast will subside.” http://wesbos.com/overwhelmed-with-web-development/
Focus on a higher level and remove the anxiety
deep knowledge of 1-2 tools you rely on is always
superior
there are too many frameworks 4
None
in the last 12 - 24 months… backbone angular ember
react
this is not a bad thing!
competition = improvement (ReactJS rendering)
“Why we moved from A to B and why A
is rubbish”
pressure to be on the latest and greatest
use cases
don’t under value familiarity
GoCardless picked Angular
and now we’re quite good at it
“will you move from Angular to X?
https://roost.bocoup.com/2015/austin/blog/why-backbone/
so many considerations
https://twitter.com/padolsey/status/603203449803636737
None
no framework is good at everything no framework is bad
at everything
libraries vs frameworks
None
npm unified package publication
proper dependency management and versioning!
None
ECMAScript 6 ECMAScript 2015
Release Candidate 4 https://people.mozilla.org/~jorendorff/es6-draft.html
goals of ES6 3
complex applications
libraries
code generation (compile to JS)
https://youtu.be/mPq5S27qWW8
block scoping arrow functions destructuring default parameters
adoption and familiarity
we’re not writing “straight up” JavaScript any more
None
testing grounds
=>
None
None
SystemJS
jspm http://javascriptplayground.com/blog/2014/11/js-modules-jspm- systemjs/
https://youtu.be/NpMnRifyGyw
http://www.bbc.co.uk/news/magazine-16444966
“Photographs will be telegraphed from any distance… striking events will
be published… an hour later… photographs will reproduce all of nature’s colours.”
“Wireless telephone and telegraph circuits will span the world. A
husband in the middle of the Atlantic will be able to converse with his wife sitting in her boudoir in Chicago.”
“There will be no C, X or Q in our
everyday alphabet. They will be abandoned because unnecessary.”
things that will may (won’t) happen in JavaScript in the
next 12-24 months… 8
…for complex web applications
fewer people will write JS without going through a compilation
step 1
(TypeScript and Babel in particular)
Smaller libraries (and the composing of) will become more popular
2
Focus on libraries doing one thing well (MomentJS, Immutable) 3
The monoliths (Angular, Ember) will always have their place and
use cases 4
The use of compilers like Babel will be abstracted away
by build tools like jspm and Webpack 5
Running the same JS client side and server side will
become more popular 6
and the phrase “Isomorphic JS” will die in a pit
of fire 6.1
As ES6 implementations grow and stabilise, we’ll already be writing
ES7 anyway 7
The rate of new frameworks will slow down 8
In 12 months, tweet me telling me how right wrong
I was
@Jack_Franklin