is-iso-date/index.js

A simple utility to check if a string is an ISO-compliant date.

'use strict';

module.exports = isISODate;

var isoDateRegExp = new RegExp( /(\d{4}-[01]\d-[0-3]\dT[0-2]\d:[0-5]\d:[0-5]\d\.\d+([+-][0-2]\d:[0-5]\d|Z))|(\d{4}-[01]\d-[0-3]\dT[0-2]\d:[0-5]\d:[0-5]\d([+-][0-2]\d:[0-5]\d|Z))|(\d{4}-[01]\d-[0-3]\dT[0-2]\d:[0-5]\d([+-][0-2]\d:[0-5]\d|Z))/ );

function isISODate( str ) {
    return isoDateRegExp.test( str );
}