小程序封装util时间

1.util.js代码 

import { config } from "../config.js";
const { imgsDomain } = config;
//常用功能封装 目前收录方法有：像素处理，日期处理，数组处理

//像素处理
// 遇到必须使用px的地方，保证适配，封装rpx转对应px方法
export const {
  pixelRatio: dpr,
  windowWidth,
  windowHeight,
  system,
} = wx.getSystemInfoSync();
const rate = windowWidth / 750;

export function rpx2px(rpx) {
  return rate * rpx;
}
//日期处理
// 封装日期格式为年-月-日
const formatTime = (date) => {
  const year = date.getFullYear();
  const month = date.getMonth() + 1;
  const day = date.getDate();
  const hour = date.getHours();
  const minute = date.getMinutes();
  const second = date.getSeconds();

  // return `${[year, month, day].map(formatNumber).join("/")} ${[hour, minute, second].map(formatNumber).join(":")}`; 
   return `${[year, month, day].map(formatNumber).join(".")} ${[hour, minute, second].map(formatNumber).join(":")}`;
};

const formatTime = date => {
  const year = date.getFullYear()
  const month = date.getMonth() + 1
  const day = date.getDate()
  const hour = date.getHours()
  const minute = date.getMinutes()
  const second = date.getSeconds()

  return `${[year, month, day].map(formatNumber).join('-')} ${[hour, minute, second].map(formatNumber).join(':')}`
}

// 年月日过滤
const formatDate = date => {
  const year = date.getFullYear()
  const month = date.getMonth() + 1
  const day = date.getDate()
  return `${[year, month].map(formatNumber).join('年') + '月'}${[day].map(formatNumber).join('') + '日'} `
}

// 时分过滤
const formatHour = date => {
  const hour = date.getHours()
  const minute = date.getMinutes()
  return `${[hour, minute].map(formatNumber).join(':')}`
}

// 周过滤
const formatDay = date => {
  const day = date.getDay()
  let days = ''
  switch (day){
   case 1:
     days='周一';
     break;
    case 2:
      days='周二';
      break;
    case 3:
      days ='周三';
      break;
    case 4:
      days ='周四';
      break;
    case 5:
      days ='周五';
      break;
     case 6:
      days ='周六';
      break;
    case 0:
      days ='周日';
      break;
  }
  return `${[days].map(formatNumber).join('')}`
}

const formatNumber = (n) => {
  n = n.toString();
  return n[1] ? n : `0${n}`;
};

// 数组处理
/**
 * 给数组数据的audio属性添加domain
 * @param {*} arr [{name,audio}]
 * @returns [] 包含完整路径的数据
 */
const fillAudioDomain = function (arr = []) {
  return arr.map((item) => {
    if (!item.audio.includes(imgsDomain)) {
      item.audio = `${imgsDomain}${item.audio}`;
    }
    return item;
  });
};

// 数组处理
/**
 * 给imgs数组数据的path属性添加domain
 * @param {*} arr [{name,path}]
 * @returns [] 包含完整路径的图片数组数据
 */
const fillImgDomain = function (arr = []) {
  return arr.map((item) => {
    if (!item.path.includes(imgsDomain)) {
      item.path = `${imgsDomain}${item.path}`;
    }
    return item;
  });
};

// 数组处理
/**
 * 将图片数组转换为[{name:path}]格式
 * @param {*} arr [{name,path}]
 * @returns {}
 */
const getImgNameByVal = function (arr = []) {
  const result = {};
  for (let i in arr) {
    result[arr[i].name] = arr[i].path;
  }
  return result;
};

// 数组处理
/**
 * 获取图片数组数据中的path部分
 * @param {*} arr [{name,path}]
 * @returns []
 */
const getImgPath = function (arr = []) {
  return arr.map((item) => item.path);
};


// 数字转换成欧洲格式 如"123,456,789"
const formatNum = (num) => {
  if (!/^(\+|-)?(\d+)(\.\d+)?$/.test(num)) {
    alert("wrong!");
    return num;
  }
  var a = RegExp.$1,
    b = RegExp.$2,
    c = RegExp.$3;
  var re = new RegExp().compile("(\\d)(\\d{3})(,|$)");
  while (re.test(b)) b = b.replace(re, "$1,$2$3");
  return a + "" + b + "" + c;
}

module.exports = {
  formatTime,
  fillAudioDomain,
  fillImgDomain,
  getImgNameByVal,
  getImgPath,
  formatNum,
  formatDay,
  formatHour,
  formatDate
};

2.

3.引入 

import {
  formatNum
} from '../../utils/functiontools/util';

  onLoad: function (options) {
    console.log(formatNum(525441155))
  },