How can I parse a string to a specific date format in javascript

Question

Parse a string to a specific date format in JavaScript.

I will give input as a string(date string) and a date format(string). Expecting output as date object.

I searched in stackoverflow and found some questions and answers. I checked How to format a JavaScript date , Where can I find documentation on formatting a date in JavaScript? and Converting a string to a date in JavaScript

But all are explaining about converting or formatting date to string. I am looking for parsing a string to date object.

Here I will give date in string format. That is input data is not a date object. And giving format of date. Date format is giving dynamically. That is sometime it is "MM/DD/YYYY" or 'dd/mm/yy' etc. Expected output is date object.

Example 1

var string1 = '03/04/2019';
var format = 'dd/mm/yy';
var dateObject = parse(string1 , format );

Example 2

var string1 = '10/21/2013';
var format = 'MM/DD/YYYY';
var dateObject = parse(string1 , format );

Hi! look here https://stackoverflow.com/questions/5619202/converting-a-string-to-a-date-in-javascript — gpasci, Apr 03 '19 at 11:21
I can not use external API in my project. Is there any method in JavaScript or JQuery for above requirement. — ZUBAIR V, Apr 03 '19 at 11:23
You need to provide your own date parsing function. Hence it's almost always a good idea to store dates in ISO8601 notation: `yyyy-mm-ddThh:mm:ss.ffffff` or as a unix timestamp integer. Both of these can natively be parsed by `new Date()` without the need to create a function that breaks up your own date format into the correct parameters to use with `new Date()`. — Shilly, Apr 03 '19 at 11:23
Durga : I checked your comment. In my case date format always different. It is not helped me. Thanks. — ZUBAIR V, Apr 03 '19 at 11:32
If you can't specify the date format at runtime then it's impossible to infer a date from your string. — Reinstate Monica Cellio, Apr 03 '19 at 13:20
Please look at my answer [here](https://stackoverflow.com/a/55503943/9325419) — jo_va, Apr 03 '19 at 20:43

Nikos M. · Answer 1 · 2019-04-03T11:41:48.463

An example using DateX a small date manipulation library of my own (if you are intersted check it out).

PERMISSION You can freely copy-paste the relevant date parsing and checking code from repository into your project if you dont want to use full library.

example:

var date = '03/04/2019', format = "d/m/Y"; /* php-like datetime format options */
var date2 = '10/21/2013', format2 = "m/d/Y"; /* php-like datetime format options */
console.log(DateX.fromString(date, format).$date /*Date Object*/ ); // might depend on timezone difference
console.log(DateX.fromString(date2, format2).$date /*Date Object*/ ); // might depend on timezone difference

<script type="text/javascript" src="https://foo123.github.io/examples/common/js/DateX.min.js"></script>

How can I parse a string to a specific date format in javascript

1 Answers1