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TypeScript

Optional static type-checking for JavaScript.

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A dead URL on our site answers 404 in one namespace and a 307 to the login form in the next

A dead URL on our site answers 404 in one namespace and a 307 to the login form in the next

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5 min read
Why setTimeout Isn't in ECMAScript & How to Fix TS Types

Why setTimeout Isn't in ECMAScript & How to Fix TS Types

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3 min read
Intl and Stripe disagree about three of the currencies we sell in, and 450000 is how you charge 4,500 forint

Intl and Stripe disagree about three of the currencies we sell in, and 450000 is how you charge 4,500 forint

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5 min read
We let Oxlint loose on a real React codebase. The speed wasn't the surprise.

We let Oxlint loose on a real React codebase. The speed wasn't the surprise.

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4 min read
Truncating og:title and og:description Without Breaking Emoji, Urdu or Your Markup

Truncating og:title and og:description Without Breaking Emoji, Urdu or Your Markup

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6 min read
The Definitive Guide to the Claude Agent SDK

The Definitive Guide to the Claude Agent SDK

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13 min read
Paid AI image jobs on Cloudflare Queues: never charge twice, never call the model twice

Paid AI image jobs on Cloudflare Queues: never charge twice, never call the model twice

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7 min read
Shipping a reminder email must not remind everyone who signed up before it existed, so ours has a seven day cutoff

Shipping a reminder email must not remind everyone who signed up before it existed, so ours has a seven day cutoff

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8 min read
Our proposal screen arrives already written, and every part of it has a Change button instead of an empty field

Our proposal screen arrives already written, and every part of it has a Change button instead of an empty field

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9 min read
Fifteen pages, 45 sibling links, and the one page no sibling links to

Fifteen pages, 45 sibling links, and the one page no sibling links to

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6 min read
Our settlement job and our checkout webhook can reach for the same reward row, and the one that proceeds is whoever gets it back from an UPDATE

Our settlement job and our checkout webhook can reach for the same reward row, and the one that proceeds is whoever gets it back from an UPDATE

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5 min read
Our Risk of Ruin Calculator Said 2%. Our Real Trades Said 11%.

Our Risk of Ruin Calculator Said 2%. Our Real Trades Said 11%.

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7 min read
Protect Conversation Summarization from Memory Poisoning: A TypeScript Tutorial for a Service Like BlaBlaCar

Protect Conversation Summarization from Memory Poisoning: A TypeScript Tutorial for a Service Like BlaBlaCar

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4 min read
Tabnas: A Flexible Parsing Engine, or an Abstraction Too Far?

Tabnas: A Flexible Parsing Engine, or an Abstraction Too Far?

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6 min read
Parallel AI agents need a contract first

Parallel AI agents need a contract first

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3 min read
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