Discover gists

Commit Message Format

Each commit message consists of a header, a body and a footer. The header has a special format that includes a type, a scope and a subject:

<type>(<scope>): <subject>
<BLANK LINE>
<body>
<BLANK LINE>

Rustの演算子の優先順位 Operator precedence

次の表で、演算子を優先順位降順に並べる。
- 単項演算子は二項演算子より優先されることが分かる。
  - より正確には、後置単項演算子 > 前置単項演算子 > 二項演算子の順。
- 「非結合」演算子では、その結合を丸括弧 (,) で明示しないと文法エラーとなる。
  - a == b == c - Error
  - (a == b) == c - OK
フィールド演算子.は?より強い。よって &self.hoge?は&((self.hoge)?)となる。

Convenções de nomenclatura para banco de dados

Geral

Os nomes das tabelas e colunas devem estar minúsculas e as palavras devem ser separadas por underscore, seguindo o padrão snake case. E todos os termos devem estar em inglês, exceto alguns termos que não há tradução apropriada para o inglês. Sempre prefira nomes descritivos, evitando ao máximo contrações.

Tabelas

Os nomes das tabelas devem estar no plural.

	import SwiftUI

	struct ContentView: View {
	@State var show = false
	@State var height: CGFloat = 250
	var body: some View {
	List {
	Button("Pop Sheet") {
	height = 250
	show.toggle()


	#include <IRremote.h>

	/*

	Send infrared commands from the Arduino to the iRobot Roomba
	by probono

	2013-03-17 Initial release

	"use client"

	import { forwardRef, useState } from "react"
	import { EyeIcon, EyeOffIcon } from "lucide-react"
	import { Button } from "@/components/ui/button"
	import { Input, InputProps } from "@/components/ui/input"
	import { cn } from "@/lib/utils"

	const PasswordInput = forwardRef<HTMLInputElement, InputProps>(
	({ className, ...props }, ref) => {

	import os, sys, zlib, traceback
	from Crypto.Cipher import AES
	from struct import unpack as up

	XORPAD = '3F99BB49B43CBBD339FE5FEA463316A8'.decode('hex')
	KEY = 'CAECB4CA65678965CBE67D7A3AFD228C'.decode('hex')
	IV = 'A65D5EA2D54AD0436DD46158C191361D'.decode('hex')

	def safe_open(path, mode):
	import os

	// 3D Dom viewer, copy-paste this into your console to visualise the DOM as a stack of solid blocks.
	// You can also minify and save it as a bookmarklet (https://www.freecodecamp.org/news/what-are-bookmarklets/)
	(() => {
	const SHOW_SIDES = false; // color sides of DOM nodes?
	const COLOR_SURFACE = true; // color tops of DOM nodes?
	const COLOR_RANDOM = false; // randomise color?
	const COLOR_HUE = 190; // hue in HSL (https://hslpicker.com)
	const MAX_ROTATION = 180; // set to 360 to rotate all the way round
	const THICKNESS = 20; // thickness of layers
	const DISTANCE = 10000; // ¯\\_(ツ)_/¯

	/* Snake Game using C++
	developed by TheKittyKat,
	improved by Nazim Nazari
	December 2017 */

	#include <iostream>
	#include <conio.h>
	using namespace std;

	void run();

	# https://superuser.com/a/1434648

	Add-Type -AssemblyName System.Runtime.WindowsRuntime
	$asTaskGeneric = ([System.WindowsRuntimeSystemExtensions].GetMethods() \| ? { $_.Name -eq 'AsTask' -and $_.GetParameters().Count -eq 1 -and $_.GetParameters()[0].ParameterType.Name -eq 'IAsyncOperation`1' })[0]

	Function Await($WinRtTask, $ResultType) {
	$asTask = $asTaskGeneric.MakeGenericMethod($ResultType)
	$netTask = $asTask.Invoke($null, @($WinRtTask))
	$netTask.Wait(-1) \| Out-Null
	$netTask.Result