canwdev

function padNum(num, len = 2) {
  return num.toString().padStart(len, '0')
}

/**
 * 获取日期和时间戳（如：202009271518）
 */
function getDateTimeString(d = new Date()) {
  return `${d.getFullYear()}${padNum(d.getMonth() + 1)}${padNum(d.getDate())}${padNum(d.getHours())}${padNum(d.getMinutes())}`
}

canwdev

/**
 * 安全地获取嵌套对象的值
 * @param obj 对象
 * @param path 键值数组
 * @param fallback 获取失败的返回值
 */
function getVal(obj, path, fallback) {
  try {
    let i
    const len = path.length

canwdev

//  parseFileName('aaa_aa_xx.mp3')
const parseFileName = (n) => {
  let dotIndex = n.lastIndexOf('.')
  if (dotIndex < 0) {
    dotIndex = n.length
  }
  const prefix = n.substr(0, dotIndex)
  const suffix = n.substr(dotIndex, n.length)
  return {
    // dotIndex,

canwdev

const guid = () => {
  function S4() {
    return (((1 + Math.random()) * 0x10000) | 0).toString(16).substring(1)
  }

  return (S4() + S4() + '-' + S4() + '-' + S4() + '-' + S4() + '-' + S4() + S4() + S4())
}

canwdev

function copyToClip(content) {
    var aux = document.createElement("input");
    aux.setAttribute("value", content);
    document.body.appendChild(aux);
    aux.select();
    document.execCommand("copy");
    document.body.removeChild(aux);
}

function getLanhuSelectedText(splitter = ' ') {

canwdev

/**
 * Returns a random number between min (inclusive) and max (exclusive)
 */
function getRandomArbitrary(min, max) {
    return Math.random() * (max - min) + min;
}

/**
 * Returns a random integer between min (inclusive) and max (inclusive).
 * The value is no lower than min (or the next integer greater than min

canwdev

const fs = require('fs-extra')
const Path = require('path')

// https://stackoverflow.com/a/65403443
const writeFileIncrement = async (filename, data, increment = 0) => {
  const incrementText = increment ? `_${increment}` : ''
  const name = `${Path.basename(filename, Path.extname(filename))}${incrementText}${Path.extname(filename)}`
  return await fs.writeFileIncrement(name, data, {encoding: 'utf8', flag: 'wx'}).catch(async ex => {
    if (ex.code === 'EEXIST') return await writeFileIncrement(filename, data, increment += 1)
    throw ex

canwdev

export default {
  methods: {
    async initMap() {
      import('leaflet/dist/leaflet.css')
      import('leaflet').then((L) => {
        const itemList = this.originalList || [{}]
        const map = L.map('myMap').setView(itemList[0].latlng || [-25.363, 131.044], commonZoom)

        const icon = L.icon({
          iconUrl: require('~/assets/images/utils/map-icons/marker-icon.png'),

canwdev

/**
 * 扁平文件夹数组生成文件夹树状结构
 * @param files
 * @returns {*}
 */
function genFolderTree(files) {
  const tree = []
  const buildTree = (hierarchy, file) => {
    let curTree = tree
    const maxDepth = hierarchy.length - 1

canwdev

export class EventEmitter {
  constructor() {
    this.events = []
  }

  on(name, fn) {
    if (this.events[name]) {
      this.events[name].push(fn)
    } else {
      this.events[name] = [fn]