🦋 Nicolas DUBIEN

Author of ∙ Lead Principal Software Engineer @GoPigment ∙ Opinions are my own ∙ 🦋

[🦋 Nicolas DUBIEN @ndubien]

🎊 Just published the release note for fast-check 3.22.0:

💱 Built-in support for grapheme on string arbitrary
🗑️ Deprecation of specific string arbitraries, now handled by the generic one

More details on our release note 📚
https://t.co/pGtxJv5Dwf

[🦋 Nicolas DUBIEN @ndubien]

✨ I’m thrilled to welcome our new Gold Sponsor: @lambdatesting! 🎉

Your support helps us keep improving fast-check for the whole community 💛

[🦋 Nicolas DUBIEN @ndubien]

@ssalbdivad @arktypeio @MiTypeScript The random number generator backing fast-check (called pure-rand) is deterministic. Problem would be to provide it with a start seed changing from one run to another

[🦋 Nicolas DUBIEN @ndubien]

@ssalbdivad @arktypeio @MiTypeScript Given DOOM is doable, fast-check might be doable in pure types 😅

[React Paris Conf' -by- BeJS @BeJS_]

😜#Paris, we're coming! Join us:

➡️ https://t.co/p5hTU8ozwP (Feb.28)
➡️ https://t.co/XyXLdxP00R (Mar.20-21 + #Workshop Day)

#TypeScript #React #Conferences #community

[Paris TypeScript @ParisTypeScript]

🇬🇧 Hello TypeScripters 👋

Meet @ndubien, speaker at Paris TS la Conf’! 🚀

Nicolas leads engineering teams at @gopigment, focusing on delivering complex features while optimizing #React app performance.

[🦋 Nicolas DUBIEN @ndubien]

🕳️ Time to uninstall X 🦋

I will probably continue to check it from time to time via their website. But stopping with their application 👋

[Paris TypeScript @ParisTypeScript]

🇬🇧
Hello TypeScripters and Happy New Year 👋

To kick off 2025, we’ve just published the Paris TS la Conf' schedule: https://t.co/i32v9Q6eT6 🎉

🎟️ Don’t miss your chance to join 👉 https://t.co/LfoOIyIoOj

#ParisTS #TypeScript #BeJS

[Daishi Kato @dai_shi]

> This repository has been archived by the owner on Jan 1, 2025. It is now read-only.
https://t.co/uiv2W0Hd04

[🦋 Nicolas DUBIEN @ndubien]

@rauchg Self promo https://t.co/lj8JomIFBR, mostly sharing for awareness as it might help many devs and companies to reduce the number of bugs they face

[🦋 Nicolas DUBIEN @ndubien]

🎄 The final challenge is here! 🎅

Santa’s coin distribution for the elves is at risk. Can you help Emma ensure every elf gets paid fairly and efficiently using property-based testing? 🪙

It’s the last puzzle!

👉 https://t.co/ORvAhD6Pf7

[Aymen Ben Amor @Aymen_Ben_Amor]

Last Chance! Speak now or forever .... 🤣🤣
https://t.co/dhSnvrnMzm

[🦋 Nicolas DUBIEN @ndubien]

Advent of PBT · Day 23 🎄💰

Santa's payment delays pushed the elf Emma to create a coin-payment algorithm — but it might have bugs.

After your impressive job, she decided to call you back. Can you test it to ensure elves get paid on time? 🔍

👉 https://t.co/G90hb82B2N

[🦋 Nicolas DUBIEN @ndubien]

🔔 Advent of PBT 2024 · Day 22 🔔

Santa remastered a classic game with a festive twist: SantaMind! 🎄🎁

But there's a problem—his elves' feedback algorithm might have bugs! Can you find it to ensure every guess gets the right response? 🎅🐛

👉 https://t.co/zg95UAH6Ey

[🦋 Nicolas DUBIEN @ndubien]

🎁🎮 Advent of PBT · Day 21 is here!

Santa’s remastered Tic-Tac-Toe game adds a twist: a feature to check if you can still win!

But can you be sure it’s bug-free? Use fast-check to uncover flaws and ensure every move matters!

👉 https://t.co/GGBSuJec7d

[Paris TypeScript @ParisTypeScript]

🇫🇷
Hello les TypeScripters 👋

Nous avons terminé la revue des propositions pour le CFP de Paris TS la Conf' !

Les emails de réponse ont été envoyés. Merci à toutes et tous pour vos superbes propositions💙

On a hâte de vous partager le programme 😁

#ParisTS #TypeScript #BeJS

[Paris TypeScript @ParisTypeScript]

🇬🇧
Here we go TypeScripters! 🎉

Meet the amazing speakers of Paris TS Conf' 💙

@JoshuaKGoldberg
@ndubien
@orta
@shaundai
@AnfibiaCreativa
@c9antoine
@sumy92
@arcanis
@davrous
@ElisePatrikain1
@lcasdev
@AndaristRake

[🦋 Nicolas DUBIEN @ndubien]

🚨 Advent of PBT 2024 · Day 20 🚨

Santa tackled a coding puzzle to boost his morale but fears there might be a bug in his optimized solution. Can you prove him right (or wrong)? 🔍

Test his algorithm with fast-check and restore his confidence! 🎄✨

👉 https://t.co/PzSaEPGFX7

[🦋 Nicolas DUBIEN @ndubien]

@BenjDicken It would be better for fair comparisons.

[🦋 Nicolas DUBIEN @ndubien]

@BenjDicken For languages like JavaScript (whatever the runtime) you should ideally do a pre-warmup of the executor. Before being fast it should have run the code several times. The first few inputs should be skipped for warm-up and measures should start after them.

[🦋 Nicolas DUBIEN @ndubien]

🎄 Day 19 of the Advent of PBT is here!

Santa’s sleigh-packing algorithm needs to be checked! Can you find a bug in the elves’ plan and ensure Santa minimizes his trips? The fewer trips, the faster the gifts! 🛷✨
https://t.co/w0kfP0Yi1n