StevenACoffman

This is my notes from a few articles:

• Golang Error Handling Best Practices
• Error Handling in Go

Some error values are mostly just used for control flow. For example, "Access Denied", or "Authentication Required".

In my opinion, you should only add stack trace to an error which is potentially going to break your program. A logical error like we have seen in the authorization example does not need a track state. But since Wrap method can be used to ammend original error message which is also called as annotating an error, the choice is up to you.

The types of errors that would bubble up to be a 500 Internal Server Error generally require investigation by a developer. In these cases, a stacktrace (and ideally other contextual information) is incredibly valuable.

jeziellago

#!/usr/bin/env python3

'''
!!! Required adb PATH on env var !!!

[Usage]
Run with python:
$ python3 send_push_or_deeplink.py
or add exec permission
$ chmod +x send_push_or_deeplink.py

nov

require 'apple_id'

# NOTE: in debugging mode, you can see all HTTPS request & response in the log.
# AppleID.debug!

pem = <<-PEM
-----BEGIN PRIVATE KEY-----
  :
  :
-----END PRIVATE KEY-----

RRethy

Seamlessly editing remote files in (Neo)Vim with Netrw and scp

Neovim and Vim both come bundled with a standard plugin called Netrw. Netrw acts a file explorer (similar to NERDTree), but more importantly has the ability to work with scp (as well as sftp, rcp, ftp, and lots of others :h netrw-nread) to let you edit files and browse directories that are hosted on a remote machine, inside of your local Vim instance.

This is useful since you are able to use your Vim setup and plugins without copying over your dotfiles to the remote machine. As well, since the file is copied to your local machine, there will be no delay when typing.

Setup

This is optional for Vim, but required for Neovim (check this Neovim issue explaining why).

voluntas

デスマーチが起きる理由 - ３つの指標

著者： 青い鴉（ぶるくろ）さん @bluecrow2

これは結城浩さんの運用されていた YukiWiki に当時 Coffee 様 (青い鴉（ぶるくろ）さん）がかかれていた文章です。 ただ 2018 年 3 月 7 日に YukiWiki が運用停止したため消えてしまいました。その記事のバックアップです。

今は 404 ですが、もともとの記事の URL は http://www.hyuki.com/yukiwiki/wiki.cgi?%A5%C7%A5%B9%A5%DE%A1%BC%A5%C1%A4%AC%B5%AF%A4%AD%A4%EB%CD%FD%CD%B3 になります。

昔、自分がとても感銘を受けた文章なので、このまま読めなくなるのはとてももったいないと思い、バックアップとして公開しています。

wanshot

1. Vimを起動してそのままdiffを取りたい内容を貼り付け
2. enewで新しいバッファを開く
3. 1.のバッファと比べたい内容を貼り付け
4. 3.のバッファでdiffthis
5. 1.のバッファでdiffthis

evalphobia

tl;dr

• JSON is faster for small size data
  • map (key size < 50 and Unmarshalling intensive workload)
  • single struct
• gob is faster for big size data
  • map (key size > 50 or Marshalling intensive workload)
  • slice

(old) about

vinhnglx

Concepts

Benchmarking. We take two competing pieces of code - could be as simpler as a one liner or as complex as an entire web framework. Then, we put them up against each other (iterations per second). At the end of the task, we come up with a single metric, a score. We use the score to compare the two competing options.

In Ruby, the Benchmark module provides methods to measure and report the time used to execute Ruby code. http://ruby-doc.org/stdlib-2.0.0/libdoc/benchmark/rdoc/Benchmark.html

Profiling. Profiling your program is a way to determining which methods are called and how long each method take to complete.

gcchaan

エンジニア向け研修

• AI Shift
  • 社内SQL研修のために作った資料を公開します - (2021/06/21)
• CARTA HOLDINGS（旧VOYAGE GROUP）
  • 技術広報が新卒研修<Open AIハッカソン>をスパイしてみた - (2023/04/11)
  • @t_wadaに学ぶテスト駆動開発【CARTA 23新卒研修】 - (2023/04/19)
  • 【新卒研修】監修者@t_wadaと読む！プログラマが知るべき97のこと読書会 - (2024/04/09)
• Classi
  • 当たり前にリリースしていく ~ 新卒研修編 - (2021/05/20)
• リモートワークのための質問力向上研修を実施しました - (2021/12/07)

leommoore

File Magic Numbers

Magic numbers are the first bits of a file which uniquely identify the type of file. This makes programming easier because complicated file structures need not be searched in order to identify the file type.

For example, a jpeg file starts with ffd8 ffe0 0010 4a46 4946 0001 0101 0047 ......JFIF.....G ffd8 shows that it's a JPEG file, and ffe0 identify a JFIF type structure. There is an ascii encoding of "JFIF" which comes after a length code, but that is not necessary in order to identify the file. The first 4 bytes do that uniquely.

This gives an ongoing list of file-type magic numbers.

Image Files