Node.js 日期时间 date .减法()方法
原文:https://www . geesforgeks . org/node-js-date-time-date-减法-method/
日期时间 date .减法()方法用于减去两个日期对象。
所需模块:由 npm 安装模块或在本地使用。
- By using npm.
npm install date-and-time --save
- By using CDN link.
<script src="/path/to/date-and-time.min.js"></script>
语法:
const subtract(date1, date2)
参数: 该方法以下列参数为参数:
- date1: is the first date object minus the second date.
- Date 2: is the second date object.
返回值:此方法返回从日期 1 中减去日期 2 的结果对象。
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())
使用以下命令运行 index.js 文件:
node index.js
输出:
total days between them 2270.3951833333335
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/knowledge code/日期和时间#减法日期 1-日期 2
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