Would have been a good time to organize another #jslang #meetup, now that all the #ijs #conference people are in town.
👋🏽 to all the #JS people, have fun at the iJS
(are hashtag no thing anymore, I used to follow conferences only by following hashtags)
We been doing a #jslang session at #jscc25 and built the Intl.PluralRules #kata
The code we wrote is here:
https://codeberg.org/wolframkriesing/jslang-meetups/src/branch/main/Intl-PluralRules-jscc25/test.js
It took us a while to grasp the meaning of the API, it feels quite high-level and still needs a lot of manual work. I am personally not so convinced that the PluralRules is that much of a leap forward.
I could spend an eternity just digging into the depth of #JavaScript the Language and its specification. There is always new stuff to discover and it is all so well structured and very teaching when exploring it with tests.
Join me on Thursday at #ctwebdev on "JavaScript the Language: Diving Deep in a Test-Driven Way" – what a long and clunky title.
See also https://jslang.dev for more #JavaScript learnings.
#jslang
We had been collecting #testDriven #JavaScript for learning the language over almost 10 years now, in many meetup sessions.
Finally I was able to give it a home. https://jslang.dev is where I have put all our code from the "JavaScript the Language" #meetup.
Draft ECMA-262 / October 23, 2024
ECMAScript® 2025 Language Specification
20.1.2.12 Object.getPrototypeOf (O)
20.1.2.13 Object.groupBy (items, callback)
20.1.2.14 Object.hasOwn (O, P)
`Object.groupBy()` is new in #javascript
All major browsers support it.
https://caniuse.com/mdn-javascript_builtins_object_groupby
An introduction to understand #JavaScript Proxy.
The 1️⃣3️⃣2️⃣nd kata on https://jskatas.org.
Inspired by the 7️⃣6️⃣the #JSLang meetup.
It takes 5️⃣ minutes and
- 📖 🚫 you have not just theoretically learned it
- 👩🏼💻 🧑💻 you also used it !
And a dose of #TDD comes with it for free.
Also inspired by our last night's #jslang #meetup I built a #JSKata for you all to practice #JavaScript Proxy a bit.
The basics:
At yesterdays #JSLang #meetup we were looking for how [[Set]] is defined for the #JavaScript Proxy. Thanks for all the motivated people participating, we went quite into overtime. Thanks for the passion every month 💓.
Next month we will cover: Object.groupBy() a recent JS addition.
Join us: https://lu.ma/nowh2byb
1/2
The 76th edition of #jslang will be about #JavaScript's Proxy.
This meetup will be online+onsite = hybrid!
Thanks for Check24 for hosting us again.
🗓️ Thursday, October 17
7:00 PM - 8:30 PM
🏡 CHECK24 Vergleichsportal GmbH
München, Bayern
📺 and online
the specification for it: https://tc39.es/ecma262/#sec-proxy-objects
well explained on MDN: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Proxy
The next #jslang meetup
"JavaScript the Language" will take place 19th September online, if there is a company that wants to host it somewhere in/near Munich we can also do it hybrid.
All details at https://lu.ma/czhpx9st
#JavaScript #Learning #Meetup #TestDriven #TDD #ES6 #ESNext
#TeamProgramming #Ensemble
Wolfram wants peace #SEORank
