coodoo

/*
  # goal

    - 在不修改 node-fetch 原始參數格式下新增兩功能

      1. 新增 timeout 設定且逾時自動重試

      2. 新增 retry 模式可指定重試次數

    - 所有 config{} 皆有預設值因此使用上與原始 fetch() 相同

coodoo

$$('*').forEach(e => {e.style.outline = "1px solid #" + (~~(Math.random()*(1<<24))).toString(16);e.style.outlineOffset='-1px'} )

coodoo

// sample code copied from the blog:
// https://blog.axlight.com/posts/you-might-not-need-react-query-for-jotai/
const idAtom = atom(1)
const dataAtom = atom(
	// read
	async (get) => {
		const id = get(idAtom)
		const res = await fetch(`https://reqres.in/api/posts/${id}`)
		const data = await res.json()
		return data

coodoo

async function foo() {
  // throw new Error('bb')
  return new Promise((res, rej) => {
    setTimeout(_ => {
      // throw new Error('bb')
      rej('cc')
    }, 1000)
  })
}

coodoo

// 前情提要：async/await 只是 Promise 的語法糖
// 只要精熟 Promise 則使用 async/await 就心無罣礙

// 範例 1 - 錯誤示範
// main 為同步執行，不會等待 forEach 內三件 async 工作完成即先結束
async function async_log(time) {
  // 模擬這支 fn 經過 300ms 後才回應，因此是非同步函式
  // 想像成是 fetch() 就行
  return new Promise((resolve, reject) => {
    setTimeout(_ => {

coodoo

let arr = [
  ['a1', 'a2'],
  ['b1', 'b2', 'b3']
]

let result = arr.reduce(
             // -----------
             // 最外層 reduce 會依序遍歷
             // ['a1', 'a2'] 與 ['b1', 'b2', 'b3']

coodoo

const fetch = require('node-fetch')
const fs = require('fs-extra')
const { execSync } = require('child_process')

const main = async () => {
  const query = `nasa,cycling,surfing,underwater,swimming`
  const size = `1`
  const order = `latest`
  const orientation=`landscape`
  const photoName = 'photo.png'

coodoo

useHotkey(['Meta', 'c'], () => {
  console.log( `要跑 1`,  )
})
useHotkey(['ctrl', 'c'], () => {
  console.log( `要跑 2`,  )
})

coodoo

import {
  PixelRatio,
  Dimensions,
  useWindowDimensions
} from 'react-native'

const to = n => Number(n.toFixed(2))
const { width, height  } = Dimensions.get('window')

// 將短的那邊視為 width

coodoo

function matrixArrayToCssMatrix(array) {
  return "matrix3d(" + array.join(',') + ")";
}

function multiplyMatrixAndPoint(matrix, point) {

  //Give a simple variable name to each part of the matrix, a column and row number
  var c0r0 = matrix[0],
    c1r0 = matrix[1],
    c2r0 = matrix[2],