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@bretton
bretton / lightning-maps.md
Last active June 4, 2024 12:36
Visualisers of the Lightning Network (and some other explorers)

A (mostly) visual collection of the Lightning Network

Disclaimer

Network views tend to be the view of the network from a single node, or small selection of nodes. They are not complete views of the network. This is impossible to achieve. Even if many node views were combined, it would still be incomplete.

These network views, or network maps, have been termed 'visualisers' by the LN community.

Screenshots may reflect older visual styles, and are dated accordingly.

class Hoge
def combination(array, num)
if array.empty? || num == 0
[]
elsif num == 1
array.map{ |elem| [elem] }
else
rest = array.drop(1)
combination(rest, num - 1).map{ |elem| [array.first] + elem } +
combination(rest, num)
@axic
axic / ecverify.sol
Last active May 13, 2024 12:07
Ethereum ECVerify
//
// The new assembly support in Solidity makes writing helpers easy.
// Many have complained how complex it is to use `ecrecover`, especially in conjunction
// with the `eth_sign` RPC call. Here is a helper, which makes that a matter of a single call.
//
// Sample input parameters:
// (with v=0)
// "0x47173285a8d7341e5e972fc677286384f802f8ef42a5ec5f03bbfa254cb01fad",
// "0xaca7da997ad177f040240cdccf6905b71ab16b74434388c3a72f34fd25d6439346b2bac274ff29b48b3ea6e2d04c1336eaceafda3c53ab483fc3ff12fac3ebf200",
// "0x0e5cb767cce09a7f3ca594df118aa519be5e2b5a"
@vkostyukov
vkostyukov / statuses.md
Last active June 13, 2024 16:30
HTTP status codes used by world-famous APIs
API Status Codes
[Twitter][tw] 200, 304, 400, 401, 403, 404, 406, 410, 420, 422, 429, 500, 502, 503, 504
[Stripe][stripe] 200, 400, 401, 402, 404, 429, 500, 502, 503, 504
[Github][gh] 200, 400, 422, 301, 302, 304, 307, 401, 403
[Pagerduty][pd] 200, 201, 204, 400, 401, 403, 404, 408, 500
[NewRelic Plugins][nr] 200, 400, 403, 404, 405, 413, 500, 502, 503, 503
[Etsy][etsy] 200, 201, 400, 403, 404, 500, 503
[Dropbox][db] 200, 400, 401, 403, 404, 405, 429, 503, 507
@kakutani
kakutani / Annotation.md
Last active September 26, 2019 13:35 — forked from ursm/Gemfile
Raw Gemfile on Idobata (master - 5adeddb)

Idobata Gemfile プレゼント

tl;dr IdotabaのGemfileは"全プレ"になりました。ご笑納ください。→ Gemfile

プレゼントについてのお詫び

rebuild.fmのep36でお知らせさせていただきました、Idobataの最新版Gemfileプレゼントをお届けいたします。 過日はIdobata会議01への多数のご参加ありがとうございました。おかげさまで盛況なミートアップとなりました。 (当日会場を提供いただいたEngine Yardさまのブログにて、Idobata会議01当日の様子がまとめられています。ありがとうございます!)

@rosylilly
rosylilly / refinements.rb
Created January 5, 2014 07:33
refinements w/ block
class A
def say
puts "A"
end
end
module B
def self.role(klass, &block)
ref = refine(klass) { }
ref.module_eval(&block)
@myokoym
myokoym / Gosu-Ruby-Tutorial-Japanese.md
Last active March 8, 2018 04:43
The Japanese translation of https://github.com/jlnr/gosu/wiki/Ruby-Tutorial (GosuのRubyチュートリアルの日本語訳)

Rubyチュートリアル

※この文書は、Ruby Tutorial · jlnr/gosu Wikiの日本語訳です。

翻訳

このチュートリアルの翻訳(中国語、スペイン語、フランス語)へのリンクについては、Homeページを参照してください。

ソースコード

@thelibrarian
thelibrarian / Fixing XCode Command Line Tools.md
Last active November 6, 2017 03:28
How to fix compile errors with the XCode command line tools on Mac OS X. Solves problems such as failing to find Framework header files (e.g. ruby.h).

The Problem

If you have installed the standalone Command Line Tools for XCode on your Mac (i.e. without having XCode.app installed), some of these tools can get a bit confused due to a couple of oversights on Apple's part in finalising the setup.

Note: all commands below will need to be run from an Administrator account, or by an account with appropriate permission in /etc/sudoers.

The Solution

1. Failing to Find Frameworks

Sometime when compiling against the preinstalled Frameworks (e.g. Ruby or Python), various tools will inexplicable fail to find header files that are quite clearly there. This is caused by the fact that no XCode has been selected for the command-line tools. Wait, I hear you cry, I don't have XCode installed! Indeed, but you nonetheless need to select one, and point it somewhere where the command line tools exist, like so

@okapies
okapies / promises-are-functional.md
Last active August 14, 2023 11:44
翻訳: ”命令型のコールバック、関数型のプロミス: Node が逸した最大の機会” by James Coglan

命令型のコールバック、関数型のプロミス: Node が逸した最大の機会

Original: "Callbacks are imperative, promises are functional: Node's biggest missed opportunity" by James Coglan

Translated by Yuta Okamoto (@okapies)

Note

  • 訳者は JavaScript や Node.js に関する専門知識がほとんどありません。識者のツッコミをお待ちしております。「◯◯が分からない」等も歓迎です。
  • 元記事から構成を一部変更しています。また、関数型プログラミングに関する記述のうち、議論の骨子に絡まないものは省略しています。