ECMAScript か ECMAScript じゃないか 10問中 8問 正解しました!
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quiz-maker.site/quiz/play/3xDV

まぐれ当たり

#ecmascript #エンジニア #プログラミング #クイズメーカー

Last updated 1 year ago

Scott H. · @scotth
4 followers · 11 posts · Server fosstodon.org

Weird.

#ecmascript

Last updated 1 year ago

Saemon Zixel · @saemonzixel
24 followers · 108 posts · Server lor.sh

Сегодня я ощутил полную мощь нововведений ECMAScript 6. После того, как кто-то написал в глобальном скопе "let i;" в своём блоке <script> , я потерял возможность использовать переменную "i" везде в циклах в глобальном скопе. Пришлось перейти на "n" в циклах.

#js #javascript #ecmascript #dev

Last updated 1 year ago

Eric Bednarz · @generic
51 followers · 166 posts · Server ruhr.social

Here’s your random reminder that the same people who demand pathological worship of automatic semicolon insertion in (scared & quoted: ) insist on adding an empty declaration to each declaration block.

ruhr.social/@generic/110717935

#ecmascript #javascript #css #foolstack #frontend

Last updated 1 year ago

· @data0
88 followers · 237 posts · Server fosstodon.org

The "Change Array by copy" proposal has been merged into the . ftw!

github.com/tc39/proposal-chang

#ecmascript #immutability #javascript

Last updated 1 year ago

Ivan, the Language Mangler 🦀 · @hywan
1416 followers · 1574 posts · Server fosstodon.org

Boa release v0.17, boajs.dev/posts/2023-07-08-boa.

Boa is an experimental Javascript lexer, parser and compiler written in Rust. Currently, it has support for some of the language. It can be embedded in Rust projects fairly easily.

A lot more features are now supported, with a 78.74% conformance to the ECMAScript specification.

#rustlang #ecmascript #javascript

Last updated 1 year ago

Boa JavaScript engine · @boa_engine
40 followers · 2 posts · Server fosstodon.org

We have released version 0.17 of Boa! 🎉

This new version of the most complete engine written in comes with tons of fixes and enhancement to our conformance, and performance.

This is our biggest release so far, and in the release post you'll find many examples on how to use all these new bits and pieces:

boajs.dev/posts/2023-07-08-boa

This has been possible thanks to a grant by Lit Protocol in our @opencollective: opencollective.com/boa

/cc @thisweekinrust

#javascript #rustlang #ecmascript #api

Last updated 1 year ago

Boa JavaScript engine · @boa_engine
2 followers · 1 posts · Server fosstodon.org

Boa just arrived at @fosstodon, so here we have our 😋

We are an open source engine written in . You can try it out in the playground in our website (boajs.dev/) because yes, it can be compiled to too!

Our conformance can be followed at boajs.dev/boa/test262/

Our repo: github.com/boa-dev/boa

Our @opencollective: opencollective.com/boa

Introductory video (2019): youtu.be/_uD2pijcSi4

#introduction #javascript #rustlang #webassembly #ecmascript

Last updated 1 year ago

Andreu Casablanca 🐀 · @castarco
57 followers · 61 posts · Server hachyderm.io

2023 and 5.2 are bringing great stuff to the table.

The new Symbol.dispose, Symbol.asyncDispose, and the Disposable and AsyncDisposable interfaces, plus the new `using` keyword are going to be wonderful "quality of life" improvements.

What surprised me even more positively is that they considered suppressed errors.

devblogs.microsoft.com/typescr

#ecmascript #typescript

Last updated 1 year ago

Masaki Hara · @qnighy
991 followers · 7831 posts · Server qnmd.info

ECMAScript Record & Tuple polyfill はどのようにして実装されているのか | Wantedly Engineer Blog by @qnighy wantedly.com/companies/wantedl

#javascript #ecmascript

Last updated 1 year ago

Frozen Canuck · @frozencanuck
87 followers · 1185 posts · Server mas.to

I'd really love to see get fully native immutable data objects just like has with data classes or (v14+) has records. No need for 3rd-party libraries like Immutable or Immer.

#nodejs #ecmascript #java #kotlin #javascript

Last updated 1 year ago

Axel Rauschmayer · @rauschma
4228 followers · 2245 posts · Server fosstodon.org

Interesting phenomenon (non-strict mode):

> const x = Object.prototype.toString;
> x() // unexpected: `this` is undefined(?)
"[object Undefined]"
> x.call(window)
"[object Window]"

> function f() { return this }
> f() // result as expected in sloppy mode
Window {...}

Any ideas?

#javascript #ecmascript

Last updated 1 year ago

Axel Rauschmayer · @rauschma
4228 followers · 2236 posts · Server fosstodon.org
Axel Rauschmayer · @rauschma
4228 followers · 2235 posts · Server fosstodon.org
Gerardo Lisboa · @gvlx
168 followers · 1905 posts · Server masto.pt

Recommend reading:

Sponsoring dependencies: The next step in open source sustainability

by Nicholas C. Zakas

humanwhocodes.com/blog/2022/06

You should also consider him, specially if your product or project is heavily dependent on

github.com/sponsors/nzakas

#sponsoring #javascript #ecmascript #opensource #sustainability #financing #softwaredevelopment #software

Last updated 1 year ago

Axel Rauschmayer · @rauschma
4225 followers · 2217 posts · Server fosstodon.org

How do you avoid name clashes between functions, variables, components, and types?
gist.github.com/sapegin/a46ab4

#es_next_news #ecmascript #javascript

Last updated 1 year ago

Axel Rauschmayer · @rauschma
4225 followers · 2215 posts · Server fosstodon.org
Axel Rauschmayer · @rauschma
4225 followers · 2214 posts · Server fosstodon.org
Axel Rauschmayer · @rauschma
4219 followers · 2193 posts · Server fosstodon.org