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@sindresorhus
sindresorhus / esm-package.md
Last active May 19, 2024 21:22
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.

Scaling your API with rate limiters

The following are examples of the four types rate limiters discussed in the accompanying blog post. In the examples below I've used pseudocode-like Ruby, so if you're unfamiliar with Ruby you should be able to easily translate this approach to other languages. Complete examples in Ruby are also provided later in this gist.

In most cases you'll want all these examples to be classes, but I've used simple functions here to keep the code samples brief.

Request rate limiter

This uses a basic token bucket algorithm and relies on the fact that Redis scripts execute atomically. No other operations can run between fetching the count and writing the new count.

@jboner
jboner / latency.txt
Last active May 19, 2024 16:30
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
@aliesbelik
aliesbelik / benchmarking-tools.md
Last active May 16, 2024 14:11
Benchmarking & load testing tools
@steve981cr
steve981cr / How-to-Release-an-Electron-App-on-the-Mac-App-Store.md
Last active May 15, 2024 20:43
Step by step instructions on how to release an Electron app on the Mac App Store. Uses Electron-builder to package the app.
@jaymecd
jaymecd / amend-git-author.md
Created December 3, 2018 22:45
Amend GIT author within branch starting from COMMIT_ID

To reset commit author its required:

  1. to update default user name/email. (--global could added)
$ git config user.name example user
$ git config user.email example@email.com
  1. set checkpoint to keep orignal commit tree.
@codebrainz
codebrainz / c99.l
Created June 14, 2012 23:49
C99 Lex/Flex & YACC/Bison Grammars
D [0-9]
L [a-zA-Z_]
H [a-fA-F0-9]
E ([Ee][+-]?{D}+)
P ([Pp][+-]?{D}+)
FS (f|F|l|L)
IS ((u|U)|(u|U)?(l|L|ll|LL)|(l|L|ll|LL)(u|U))
%{
#include <stdio.h>
@natanlao
natanlao / syncthing-photo-sync.md
Last active May 12, 2024 22:51
Syncing iPhone photos with Syncthing

For those who prefer to avoid solutions like iCloud Photos and Dropbox for backing up photos, you can sync your iPhone photos with Syncthing. To do this, you'll need two things:

  • Möbius Sync is, to my knowledge, the only actively-maintained Syncthing client for iOS. It's free to sync up to 20 MB, and only $4.99 (one-time) to remove that limit.

  • PhotoSync is a nifty iOS app for syncing photos to a number of different destinations. It's free for low-quality

@tuzz
tuzz / github.css
Last active May 8, 2024 00:48
Github Markdown Stylesheet
/*
Copyright (c) 2017 Chris Patuzzo
https://twitter.com/chrispatuzzo
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
@Kestrer
Kestrer / how-to-write-hygienic-macros.md
Created October 17, 2020 05:35
A guide on how to write hygienic Rust macros

How to Write Hygienic Rust Macros

Macro hygiene is the concept of macros that work in all contexts; they don't affect and aren't affected by anything around them. Ideally all macros would be fully hygienic, but there are lots of pitfalls and traps that make it all too easy to accidentally write unhygienic macros. This guide attempts to provide a comprehensive resource for writing the most hygienic macros.

Understanding the Module System

First, a little aside on the details of Rust's module system, and specifically paths; it is