SpiderMonkey

SpiderMonkey is Mozilla’s JavaScript and WebAssembly Engine, used in Firefox, Servo and various other projects.

[SpiderMonkey @SpiderMonkeyJS]

Last week we introduced what import maps are and how they work. This week Yoshi explores the feature in depth, in the second part of his two part series on Import maps.

Read the blog post here: https://t.co/mjJK6b5v9E

[SpiderMonkey @SpiderMonkeyJS]

Late last year, we implemented the Import Maps specification in Firefox. Yoshi (the engineer working on it) wrote an in-depth introduction to it, along with a deep dive that you can expect next week!

Read the blog post here: https://t.co/uXSJjNTOsO

[Firefox Beta @firefoxbeta]

SpiderMonkey Newsletter (Firefox 106-107) https://t.co/dDFSaPGBJq

[Firefox Beta @firefoxbeta]

SpiderMonkey Newsletter (Firefox 104-105) (Mozilla JavasScript engine) https://t.co/yhtnG0rzAb

[Firefox Beta @firefoxbeta]

SpiderMonkey Newsletter (Firefox 102-103) https://t.co/vqI2R9n0ox

[yulia @codehag]

Ecma International recently approved the 2022 standard of ECMAScript. But there is something new in this edition that hasn't been part of prior editions, and this isn't a new programming feature. 🧵 https://t.co/fErUJnY8Bm

[Firefox Beta @firefoxbeta]

[Firefox JS engine] SpiderMonkey Newsletter https://t.co/lv0ZEfK7je

[SpiderMonkey @SpiderMonkeyJS]

SpiderMonkey Newsletter (Firefox 96-97)

https://t.co/B9RmaAfhzq

[SpiderMonkey @SpiderMonkeyJS]

@fvsch Thanks for the report! I filed https://t.co/VSJsu6NEOg

[Iain Ireland @Iainlreland]

My team at Mozilla is hiring. Come write compilers with us! The Layout, DOM, and Media Playback teams are also looking for C++ programmers: https://t.co/TpR1xn41Mt
Happy to answer questions if you're interested!

[Firefox Beta @firefoxbeta]

[JavaScript Engine] SpiderMonkey Newsletter (Firefox 94-95) https://t.co/Gmbm5FLab1

[Nicolas B. Pierron @nbpname]

Following @codehag 's footsteps with #CompilerCompiler, this Firday 6pm CEST would be the first #ReverseEngineerSpidermonkey stream at https://t.co/a44FKqDX3x.

On the topic, the LifoAlloc allocator used to speed-up large number of allocations while reclaiming the memory quickly.

[Firefox Beta @firefoxbeta]

SpiderMonkey Newsletter (Firefox 92-93) https://t.co/faPTKrgJsI

[Dmitry Bezhetskov @dbezhetskov]

I've finally setup my blog - https://t.co/H3CgMLgOKF and there is a first post about SpiderMonkey and WASI (https://t.co/sZswyriEDB)

[SpiderMonkey @SpiderMonkeyJS]

A lot of improvements landed in Firefox 90 and 91. Read about it in our latest newsletter:

https://t.co/DBgqCIWmUf

[Rob Palmer @robpalmer2]

ECMAScript excitement 😉

Congrats to all those who contributed to today's release of Firefox 90 🎉

⚡ Private Fields & Methods (Stage 4)
⚡ .at() for Arrays & Strings (Stage 3)
⚡ Ergonomic Brand Checks (Stage 3)
⚡ Intl.DateTimeFormat dayPeriod option

[Firefox DevTools @FirefoxDevTools]

Our friends @SpiderMonkeyJS implemented the Error cause proposal in Firefox 91* (https://t.co/N2aDectduq)

The WebConsole displays this new cause property in error messages (and yes, you can have a chain of Error causes 🙂)

* 91 will be Beta/DevEdition later this week

[Web Directions @webdirections]

Just-In-Time (JIT) compilers are used in all major JavaScript engines to improve the speed, but how do they work? At Global Scope @nbpname will help us understand the principles of JIT compilation, and so how to optimize our code.

https://t.co/RwvwVDL8Um

[Web Directions @webdirections]

Language specification can be a bit of a mystery. At Global Scope, @codehag introduces the stages of the TC39 process for introducing a new language feature to JavaScript, and some high level concerns around our design process.

https://t.co/iRvWvBpvDP

[Mathias Bynens @mathias]

@littledan @andywingo @SpiderMonkeyJS @luke_wagner @codehag Honestly, hiring John Howard for any JS engine swag design is now mandatory. The BaldrMonkey t-shirt is my favorite 🔥 https://t.co/HDsPaYom5m