is-datestring

Check if a string is a datetime string

💥 Be aware of some quirks. Use at your own risk. Pull requests welcome if you would like to help close issues on this module.

Install

$ npm install --save is-datestring

Usage

var isDateString = require('is-datestring');
 
isDateString('Wednesday March 25 2015');
// => true
 
isDateString('Wed Sep 09 2015 23:11:46 GMT+0100 (WEST)');
// => true
 
isDateString('2016-12-30T08:00:00.000Z');
// => true
 
isDateString('1/1/2015');
// => true
 
isDateString('Regular String');
// => false
 
isDateString({});
// => false

Supported Formats

Currently, this module considers the following formats to be datestrings:

• 2015-03-25
• 2015-03-25
• 1/1/2015
• Mar 25 2015
• 25 Mar 2015
• Wednesday March 25 2015
• Wed Sep 09 2015 23:11:46 GMT+0100 (WEST)
• 2016-12-30T08:00:00.000Z

Other formats are likely to be supported, but this module only tests for the formats listed above. Pull requests are welcome if you would like to add test coverage for additional formats.

Known Issues

• Allows Strange Values: This module uses JavaScript Date() constructor to help determine if a string is a valid datestring. Because of this, the module is suceptible to certain JavaScript quirks, and sometimes it lets some unassuming dateString values pass as valid datestrings. See Issue #2 for more information.

License

MIT @ Michael Wuergler