Node.js Date.isValid() API

The date-and-time.Date.isValid() is a minimalist collection of functions for manipulating JS date and time module which is used to validate the particular date and time with its string format.

Required Module: Install the module by npm or used it locally.

• By using npm.

npm install date-and-time --save

• By using CDN link.

<script src="/https/www.geeksforgeeks.org/path/to/date-and-time.min.js"></script>

Syntax:

isValid(arg1[, arg2])

Parameters: This method takes the following arguments as parameters:

• arg1: It is the date and time object.
• arg2: It is the string format of the given date.

Return Value: This method returns true if and only if the terms are validated.

Example 1:

// Node.js program to demonstrate the  
// Date.isValid() method

// Importing date-and-time module
const date = require('date-and-time')

// Validating the terms
// by using date.isValid() method
const status = date.isValid('29-02-2015', 'DD-MM-YYYY');

// Display the result
if(status)
  console.log("Date is valid")
else
  console.log("Date is not invalid")

Run the index.js file using the following command:

node index.js

Output:

Date is not invalid

Example 2:

// Node.js program to demonstrate the  
// Date.isValid() method

// Importing date-and-time module
const date = require('date-and-time')

// Pre parsing the date and time
// by using preparse() method
const result = date.preparse('2015/01/02 23:14:05', 'YYYY/MM/DD HH:mm:ss');

// Validating the terms
// by using date.isValid() method
const status = date.isValid(result);

// Display the result
if(status)
  console.log("Date is valid")
else
  console.log("Date is not invalid")

Run the index.js file using the following command:

node index.js

Output:

Date is valid

Reference: https://github.com/knowledgecode/date-and-time