Node.js Date.preparse() API

The date-and-time.Date.preparse() is a minimalist collection of functions for manipulating JS date and time module which is used to pre-parse the date according to a certain pattern.

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="/path/to/date-and-time.min.js"></script>

Syntax:

preparse(dateString, arg)

Parameters: This method takes the following arguments as parameters:

• dateString: It is the string object of the date.
• arg: It is the required date format.

Return Value: This method returns parsed date and time.

Example 1:

index.js

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

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

// Creating object of current date and time
// by using Date()
const now  =  new Date('07-03-2021');

// Pre parsing the date and time
// by using date.preparse() method
const value = date.preparse(now.toLocaleDateString(),'D/M/YYYY');

// Display the result
console.log(value)

Run the index.js file using the following command:

node index.js

Output:

{
  Y: 2021,   
  M: 3,      
  D: 7,      
  H: 0,      
  A: 0,      
  h: 0,      
  m: 0,      
  s: 0,      
  S: 0,      
  Z: 0,      
  _index: 8, 
  _length: 8,
  _match: 3  
}

Example 2:

index.js

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

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

// Pre parsing the date and time
// by using date.preparse() method
const value = date.preparse('23:14:05 GMT+0900','HH:mm:ss [GMT]Z');

// Display the result
console.log("pre parsed date and time : " + value._length)

Run the index.js file using the following command:

node index.js

Output:

pre parsed date and time : 17

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