nodejs-tool/util.js

node工具包

class UtilTool {
  constructor() {
    this.name = "UtilTool";
  }

  /**
   * @name Sleep
   * @description 一个同步方法，调用时方法时需要在方法前加 await 关键字，并且要在同步方法中
   * @param {String} ms 睡眠时长，单位为毫秒
   * @returns 
   */
  Sleep = ms => {
    return new Promise(resolve => setTimeout(resolve, ms));
  }

  /**
   * @name GetDate
   * @description 获取一个格式化的日期
   * @param {String} date 日期对象，默认为调用时的日期
   * @param {String} format 格式化格式： 'year'、'month'、'day'、'hour'、'minute'、'second'、'YMD'、'hms'、'MD、'hm'、'MDhm'
   * @param {String} separator_YMD 年月日的分割符
   * @param {String} separator_hms 时分秒的分割符
   * @param {String} separator 年月日和时分秒之间的分割符
   * @returns 
   */
  GetDate = ({ date = new Date(), format = "", separator_YMD = "-", separator_hms = ":", separator = " " }) => {
    process.env.TZ = 'Asia/Shanghai';

    const datetime = new Date(date);

    const year = String(datetime.getFullYear());

    const month = String(datetime.getMonth() + 1).length > 1 ? String(datetime.getMonth() + 1) : '0' + (datetime.getMonth() + 1);

    const day = String(datetime.getDate()).length > 1 ? String(datetime.getDate()) : '0' + datetime.getDate();

    const hour = String(datetime.getHours()).length > 1 ? String(datetime.getHours()) : '0' + datetime.getHours();

    const minute = String(datetime.getMinutes()).length > 1 ? String(datetime.getMinutes()) : '0' + datetime.getMinutes();

    const second = String(datetime.getSeconds()).length > 1 ? String(datetime.getSeconds()) : '0' + datetime.getSeconds();

    if (format === 'year') { return year; }

    if (format === 'month') { return month; }

    if (format === 'day') { return day; }

    if (format === 'hour') { return hour; }

    if (format === 'minute') { return minute; }

    if (format === 'second') { return second; }

    if (format === 'YMD') { return `${year}${separator_YMD}${month}${separator_YMD}${day}`; }

    if (format === 'hms') { return `${hour}${separator_hms}${minute}${separator_hms}${second}`; }

    if (format === 'MD') { return `${month}${separator_YMD}${day}`; }

    if (format === 'hm') { return `${hour}${separator_hms}${minute}`; }

    if (format === 'MDhm') { return `${month}${separator_YMD}${day}${separator}${hour}${separator_hms}${minute}`; }


    return `${year}${separator_YMD}${month}${separator_YMD}${day}${separator}${hour}${separator_hms}${minute}${separator_hms}${second}`;
  };


}



module.exports = UtilTool;