guxuerui

// const fib  = (num) => {
//   if (num <= 0) return 0;
//   if (num === 1 || num === 2) return 1;
//   if (num > 2) {
//     let prev = 1, next = 1;
//     for (let i = 3; i <= num; i++) {
//       let sum = prev + next;
//       prev = next;
//       next = sum;
//     }

guxuerui

const sum = (a, b) => {
  if (a == 0) return b;
  if (b == 0) return a;
  let newA = a ^ b;
  let newB = (a & b) << 1;
  return sum(newA, newB);
}
const a = 10, b = 5;
console.log(sum(a, b)); // 15

guxuerui

var length = 10;
function fn() {
    console.log(this.length);
}

var obj = {
  length: 5,
  method: function(fn) {
    fn();
    arguments[0]();

guxuerui

var name = 0;
var a = {
  name: 1,
  f1: function(){
    this.name = 2;
  },
  f2: function(){
    this.name = 3;
    return null
  },

guxuerui

function isType(target, type) {
  let targetType = Object.prototype.toString.call(target).slice(8, -1).toLowerCase()
  return targetType === type.toLowerCase()
}

isType([], 'Array') // true
isType(/\d/, 'RegExp') // true
isType(new Date(), 'Date') // true
isType(function(){}, 'Function') // true
isType(Symbol(1), 'Symbol') // true

guxuerui

function myTrim(str){
  let reg = /^\s+|\s+$/g; 
  return str.replace(reg,"");
}
console.log(myTrim("   abcd     ")); // abcd

guxuerui

const arrayToTree  = (items) => {
  let results = [];
  let map = {};

  items.forEach(el => {
    let item = {...el, children: []};
    if (map[item.id]) {
      item.children = map[item.id];
    } else {
      map[item.id] = item.children;

guxuerui

// in public/config.js

window.g = {
  protocol: 'http',
  address: '192.168.20.229',
  port: 18000,
  timeout: 12 * 1000
}

// in http/index.ts

guxuerui

const getMetaData = async () => {
  // example file path: ./pages/js/*.md
  const allPostFiles = import.meta.glob('./pages/js/*.md')
  const iterablePostFiles = Object.entries(allPostFiles)

  const allPosts = await Promise.all(
    iterablePostFiles.map(async ([path, resolver]) => {
      const resolvedPost = await resolver()

      return {

guxuerui

import { copyToClipboard } from 'utils-snap-fn'

const copyIcon = `
  <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 32 32"><path fill="currentColor" d="M28 10v18H10V10h18m0-2H10a2 2 0 0 0-2 2v18a2 2 0 0 0 2 2h18a2 2 0 0 0 2-2V10a2 2 0 0 0-2-2Z"/><path fill="currentColor" d="M4 18H2V4a2 2 0 0 1 2-2h14v2H4Z"/></svg>
`

const copiedIcon = `
  <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 32 32"><path fill="#00a98e" d="m14 21.414l-5-5.001L10.413 15L14 18.586L21.585 11L23 12.415l-9 8.999z"/><path fill="#00a98e" d="M16 2a14 14 0 1 0 14 14A14 14 0 0 0 16 2Zm0 26a12 12 0 1 1 12-12a12 12 0 0 1-12 12Z"/></svg>
`