@dazejs/time/dist/index.js

用于获取各种类型时间戳

"use strict";

/**
 * Copyright (c) 2018 Chan Zewail
 *
 * This software is released under the MIT License.
 * https://opensource.org/licenses/MIT
 */
const mktime = require('./mktime');

class Time {
  /**
   * start and end timestamps for today
   *
   * @returns {array} [startTime, endTime]
   */
  static today() {
    const date = new Date();
    const [y, m, d] = [date.getFullYear(), date.getMonth(), date.getDate()];
    return [mktime(y, m, d, 0, 0, 0, 0), mktime(y, m, d, 23, 59, 59, 999)];
  }
  /**
   * yesterday's start and end timestamps
   *
   * @returns {array} [startTime, endTime]
   */


  static yesterday() {
    const date = new Date();
    const [y, m, d] = [date.getFullYear(), date.getMonth(), date.getDate() - 1];
    return [mktime(y, m, d, 0, 0, 0, 0), mktime(y, m, d, 23, 59, 59, 999)];
  }
  /**
   * the start and end timestamps for tomorrow
   *
   * @returns {array} [startTime, endTime]
   */


  static tomorrow() {
    const date = new Date();
    const [y, m, d] = [date.getFullYear(), date.getMonth(), date.getDate() + 1];
    return [mktime(y, m, d, 0, 0, 0, 0), mktime(y, m, d, 23, 59, 59, 999)];
  }
  /**
   * the start and end timestamps of the week\
   *
   * @returns {array} [startTime, endTime]
   */


  static week() {
    const date = new Date();
    const [y, m, d] = [date.getFullYear(), date.getMonth(), date.getDate() - date.getDay() + 1];
    return [mktime(y, m, d, 0, 0, 0, 0), mktime(y, m, d + 6, 23, 59, 59, 999)];
  }
  /**
   * last week's start and end timestamps
   *
   * @returns {array} [startTime, endTime]
   */


  static lastWeek() {
    const date = new Date();
    const [y, m, d] = [date.getFullYear(), date.getMonth(), date.getDate() - date.getDay() - 6];
    return [mktime(y, m, d, 0, 0, 0, 0), mktime(y, m, d + 6, 23, 59, 59, 999)];
  }
  /**
   * start and end timestamps for next week
   *
   * @returns {array} [startTime, endTime]
   */


  static nextWeek() {
    const date = new Date();
    const [y, m, d] = [date.getFullYear(), date.getMonth(), date.getDate() - date.getDay() + 8];
    return [mktime(y, m, d, 0, 0, 0, 0), mktime(y, m, d + 6, 23, 59, 59, 999)];
  }
  /**
   * the start and end timestamps of the month
   *
   * @returns {array} [startTime, endTime]
   */


  static month() {
    const date = new Date();
    const [y, m] = [date.getFullYear(), date.getMonth()];
    return [mktime(y, m, 1, 0, 0, 0, 0), mktime(y, m + 1, 0, 23, 59, 59, 999)];
  }
  /**
   * last month's start and end timestamps
   *
   * @returns {array} [startTime, endTime]
   */


  static lastMonth() {
    const date = new Date();
    const [y, m] = [date.getFullYear(), date.getMonth() - 1];
    return [mktime(y, m, 1, 0, 0, 0, 0), mktime(y, m + 1, 0, 23, 59, 59, 999)];
  }
  /**
   * the start and end timestamps for the next month
   *
   * @returns {array} [startTime, endTime]
   */


  static nextMonth() {
    const date = new Date();
    const [y, m] = [date.getFullYear(), date.getMonth() + 1];
    return [mktime(y, m, 1, 0, 0, 0, 0), mktime(y, m + 1, 0, 23, 59, 59, 999)];
  }
  /**
   * start and end timestamps for this year
   *
   * @returns {array} [startTime, endTime]
   */


  static year() {
    const date = new Date();
    const [y] = [date.getFullYear()];
    return [mktime(y, 0, 1, 0, 0, 0, 0), mktime(y + 1, 0, 0, 23, 59, 59, 999)];
  }
  /**
   * last year's start and end timestamps
   *
   * @returns {array} [startTime, endTime]
   */


  static lastYear() {
    const date = new Date();
    const [y] = [date.getFullYear() - 1];
    return [mktime(y, 0, 1, 0, 0, 0, 0), mktime(y + 1, 0, 0, 23, 59, 59, 999)];
  }
  /**
   * start and end timestamps for next year
   *
   * @returns {array} [startTime, endTime]
   */


  static nextYear() {
    const date = new Date();
    const [y] = [date.getFullYear() + 1];
    return [mktime(y, 0, 1, 0, 0, 0, 0), mktime(y + 1, 0, 0, 23, 59, 59, 999)];
  }
  /**
   * days to seconds
   * 
   * @param {number} day days
   */


  static daysToSeconds(day = 1) {
    return day * 86400;
  }
  /**
   * days to milliseconds
   * 
   * @param {number} day days
   */


  static daysToMilliseconds(day = 1) {
    return day * 86400 * 1000;
  }
  /**
   * weeks to seconds
   * @param {number} week weeks
   */


  static weeksToSeconds(week = 1) {
    return this.daysToSeconds(1) * 7 * week;
  }
  /**
   * weeks to milliseconds
   * @param {number} week weeks
   */


  static weeksToMilliseconds(week = 1) {
    return this.daysToMilliseconds(1) * 7 * week;
  }
  /**
   * the time stamp (milliseconds) of a few days ago
   * 
   * @param {number} day days
   */


  static daysAgo(day = 0) {
    const time = Date.now();
    return time - this.daysToMilliseconds(day);
  }
  /**
   * the time stamp (milliseconds) of a few days after
   * 
   * @param {number} day days
   */


  static daysAfter(day = 0) {
    const time = Date.now();
    return time + this.daysToMilliseconds(day);
  }

}

module.exports = Time;