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@thesauri
thesauri / change-mac-address-sequoia.md
Last active February 26, 2026 04:05
Change MAC address macOS 15 Sequoia

Change MAC address in macOS Sequoia

I was unable to change the MAC address of the Wi-FI device on a MacBook Air (M1 2020) running macOS Sequoia due to the following error: ifconfig: ioctl (SIOCAIFADDR): Can't assign requested addres.

By running the commands in following sequence I was able to change it successfully:

  1. Turn WiFi device off
  2. Turn the WiFi device on again: networksetup -setairportpower en0 on
  3. Change the MAC: ifconfig en0 ether <mac-address-here>
  4. Run: networksetup -detectnewhardware
@orta
orta / rfc.md
Last active February 20, 2024 02:23
A proposal for improving TS2322 error messages

This is a work in progress. Please don't take this as something that will definitely happen, we all know what happens to well laid plans and I need to present it to the rest of the TypeScript team in order to figure out a lot of feasibility questions.

Intro

The examples in this PR assumes [CLI DX] Improve positioning of compiler error messaging info #45717 is merged

In 4.4, all diagnostic messages from TypeScript are treated the same, we have a massive .JSON file of ±2000 diagnostic messages which are used everywhere from compiler messages to CLI help. Aside from some simple string manipulation, these are effectively what we output for all error messages. I'd like to propose that we break this pattern, just for error TS2322.

TS2322 is our 'type x is not assignable to y' error, you'd see it for const str: string = 123 and I expect it is the most seen

@sindresorhus
sindresorhus / esm-package.md
Last active August 12, 2026 14:29
Pure ESM package

Pure ESM package

The package that linked you here is now pure ESM. It cannot be require()'d from CommonJS.

This means you have the following choices:

  1. Use ESM yourself. (preferred)
    Use import foo from 'foo' instead of const foo = require('foo') to import the package. You also need to put "type": "module" in your package.json and more. Follow the below guide.
  2. If the package is used in an async context, you could use await import(…) from CommonJS instead of require(…).
  3. Stay on the existing version of the package until you can move to ESM.

Type 'from' in the editor and...

function readCookies() {
const cookies = document.cookie.replaceAll("; ", "&");
const params = new URLSearchParams(cookies);
return Object.fromEntries(params.entries());
}
@YozhEzhi
YozhEzhi / cats.md
Last active May 3, 2026 09:18
[Конспект] Дж.Ханк Рейнвотер - Как пасти котов. Наставление для программистов, руководящих другими программистами
@shcallaway
shcallaway / README.md
Last active August 15, 2024 10:28
Use jq to parse JSON logs into something more readable

Structured logs are way better than normal logs for a whole bunch of reasons, but they can sometimes be a pain to read in the shell. Take this logline for example:

{"erlang_pid":"#PID<0.1584.0>","level":"error","message":"Got error when retry: :econnrefused, will retry after 1535ms. Have retried 2 times, :infinity times left.","module":"","release":"c2ef629cb357c136f529abec997426d6d58de485","timestamp":"2019-12-17T19:22:11.164Z"}

This format is hard for a human to parse. How about this format instead?

error | 2019-12-17T19:21:02.944Z | Got error when retry: :econnrefused, will retry after 1648ms. Have retried 2 times, :infinity times left.
@dvf
dvf / change-codec.md
Last active July 14, 2026 15:41
Enable High Quality mode on your headphones (Updated for macOS Catalina)

If you're using a high-end bluetooth headset on your Macbook Pro it's likely your mac is using an audio codec which favors battery efficiency over high quality. This results in a drastic degradation of sound, the SBC codec is the likely culprit, read more about it here.

Find out what codec you're using

  1. Play a song on your headphones
  2. Option (⌥) click the Bluetooth button at the top of your screen Inspect the Bluetooth Coded
  3. If you're using AAC or aptX, you can stop here—those are the highest quality codecs.

Change your codec to AAC or aptX

@bitsurgeon
bitsurgeon / youtube.md
Last active August 11, 2026 18:49
Markdown cheatsheet for YouTube

Embed YouTube Video in Markdown File

  1. Markdown style
[![Watch the video](https://img.youtube.com/vi/nTQUwghvy5Q/default.jpg)](https://youtu.be/nTQUwghvy5Q)
  1. HTML style
<a href="http://www.youtube.com/watch?feature=player_embedded&v=nTQUwghvy5Q" target="_blank">
@gaearon
gaearon / uselayouteffect-ssr.md
Last active November 26, 2025 07:31
useLayoutEffect and server rendering

If you use server rendering, keep in mind that neither useLayoutEffect nor useEffect can run until the JavaScript is downloaded.

You might see a warning if you try to useLayoutEffect on the server. Here's two common ways to fix it.

Option 1: Convert to useEffect

If this effect isn't important for first render (i.e. if the UI still looks valid before it runs), then useEffect instead.

function MyComponent() {