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Guide to Add a Feature to a Web App

Intro

This guide is generic in that it does pertain to any particular web framework, e.g., Express.

When the time comes to implement a user story (feature) in a typical web application, following the steps below usually is a good approach to take in most cases...

Несколько GIT учёток на одном компе

Предположим что у вас есть два рабочих каталога

c:\work
c:\hobby

в c:\work вы хотите коммитить с рабочего профиля гитхаб (ololoev@job.org), а в c:\hobby c личного (info@ololoev.ru)

для настройки необходимо перейти в домашнюю директрию текущего пользователя cd ~/

Elapsed and execution time display for commands in ZSH

Append this to your ~/.zshrc file.

function preexec() {
 timer=$(($(date +%s%0N)/1000000))

Processing JSON using jq

jq is useful to slice, filter, map and transform structured json data.

Installing jq

On Mac OS

brew install jq

Overview

Syncing an Ethereum node is largely reliant on IOPS, I/O Per Second. Budget SSDs will struggle to an extent, and some won't be able to sync at all.

This document aims to snapshot some known good and known bad models.

For size, 4TB or 2TB come recommended as of mid 2024. A 2TB drive should last an Ethereum full node until late 2025 or thereabouts, with crystal ball uncertainty.

High-level, QLC and DRAMless are far slower than "mainstream" SSDs. QLC has lower endurance as well. Any savings will be gone when the drive fails early and needs to be replaced.

	# @see /usr/include/asm-generic/errno-base.h

	#ifndef _ASM_GENERIC_ERRNO_BASE_H
	#define _ASM_GENERIC_ERRNO_BASE_H

	#define EPERM 1 /* Operation not permitted */
	#define ENOENT 2 /* No such file or directory */
	#define ESRCH 3 /* No such process */
	#define EINTR 4 /* Interrupted system call */
	#define EIO 5 /* I/O error */

	# mihomo (Clash Meta) 懒人配置
	# 版本 V1.4.1-231211
	# https://gist.github.com/liuran001/5ca84f7def53c70b554d3f765ff86a33
	# 作者: 笨蛋ovo (bdovo.cc)
	# Telegram: https://t.me/baka_not_baka
	# 关注我的 Telegram 频道谢谢喵 https://t.me/s/BDovo_Channel
	# 修改自官方示例规则 https://wiki.metacubex.one/example/#meta
	# 转载请保留此注释
	# 尽量添加了较为详尽的注释，不理解的地方建议对照虚空终端 (Clash Meta) Docs 进行理解
	# 虚空终端 (Clash Meta) Docs 地址: https://wiki.metacubex.one

	using UnityEngine;

	public static class ColliderExtensions {

	public static bool IsVisibleFrom(this Collider collider, Camera camera)
	{
	Plane[] planes = GeometryUtility.CalculateFrustumPlanes(camera);
	return GeometryUtility.TestPlanesAABB(planes, collider.bounds);
	}

	/**
	* Run this with `babel-node generateSVG.js`
	*/
	import fs from 'fs';
	import path from 'path';
	import { Readable } from 'stream';
	import childProcess from 'child_process';
	import phantomjs from 'phantomjs';
	import im from 'imagemagick';
	import tmp from 'tmp';

	############################################################################
	# #
	# ------- Useful Docker Aliases -------- #
	# #
	# # Installation : #
	# copy/paste these lines into your .bashrc or .zshrc file or just #
	# type the following in your current shell to try it out: #
	# wget -O - https://gist.githubusercontent.com/jgrodziski/9ed4a17709baad10dbcd4530b60dfcbb/raw/d84ef1741c59e7ab07fb055a70df1830584c6c18/docker-aliases.sh \| bash
	# #
	# # Usage: #