How one line of code caused a $60 million loss

60,000 people lost full phone service, half of AT&T's network was down, and 500 airline flights were delayed

60,000 people lost full phone service, half of AT&T's network was down, and 500 airline flights were delayed.

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Four Kinds of Optimisation
17 minutes by Laurence Tratt

Premature optimisation might be the root of all evil, but overdue optimisation is the root of all frustration. No matter how fast hardware becomes, we find it easy to write programs which run too slow. Often this is not immediately apparent.

Ship Shape
10 minutes by Kerry Halupka and Rowan Katekar

How Canva does hand-drawn shape recognition in the browser.

They’re cool for appending notes from automated systems (like ticket or build systems) but not really for having interactive conversations with other developers (at least not yet).

You won’t believe what happens next.

A list of useful, not-obvious hacks to get the most out of your browser’s debugger. Assumes an intermediate-level-or-higher understanding of the developer tools.

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