📜  Node.js 日期和时间 Date.subtract() 方法

📅  最后修改于: 2022-05-13 01:56:21.478000             🧑  作者: Mango

Node.js 日期和时间 Date.subtract() 方法

日期和时间 Date.subtract()方法用于减去两个日期对象。

所需模块:通过 npm 安装模块或在本地使用它。

  • 通过使用 npm。
npm install date-and-time --save
  • 通过使用 CDN 链接。

句法:

const subtract(date1, date2)

参数:此方法采用以下参数作为参数:

  • date1:它是减去第二个日期的第一个日期对象。
  • date2:它是第二个日期对象。

返回值:此方法返回从 date1 中减去 date2 的结果对象。

示例 1:

index.js
// Node.js program to demonstrate the  
// Date.subtract() method
  
// Importing date-and-time module
const date = require('date-and-time')
  
// Creating object of current date and time 
// by using Date() 
const now  =  new Date();
  
// Creating object of given date and time
const date1 = new Date(2015, 0, 1);
  
// Subtracting the both dates
// by using date.subtract() method
const value = date.subtract(now,date1);
  
// Display the result
console.log("total days between them " 
   + value.toDays())


index.js
// Node.js program to demonstrate the  
// Date.subtract() method
  
// Importing date-and-time module
const date = require('date-and-time')
  
// Creating object of current date and time 
// by using Date() 
const now  =  new Date();
  
// Setting days in the existing date
now.setDate(20);
  
// Creating object of given date and time
const date1 = new Date(2015, 0, 1);
  
// Subtracting the both dates
// by using date.subtract() method
const value = date.subtract(now,date1);
  
// Display the result
console.log("total days between them " + value.toDays())


使用以下命令运行index.js文件:

node index.js

输出:

total days between them 2270.3951833333335

示例 2:

index.js

// Node.js program to demonstrate the  
// Date.subtract() method
  
// Importing date-and-time module
const date = require('date-and-time')
  
// Creating object of current date and time 
// by using Date() 
const now  =  new Date();
  
// Setting days in the existing date
now.setDate(20);
  
// Creating object of given date and time
const date1 = new Date(2015, 0, 1);
  
// Subtracting the both dates
// by using date.subtract() method
const value = date.subtract(now,date1);
  
// Display the result
console.log("total days between them " + value.toDays())

使用以下命令运行index.js文件:

node index.js

输出:

total days between them 2270.397227997685

参考:https://github.com/knowledgecode/date-and-time#subtractdate1-date2