1723515 - Incorrect date parsing when date contains hyphens

Status: RESOLVED DUPLICATE of bug 1439800

(Core :: JavaScript: Standard Library, defect)

Description

[Jitendra Kumar]

Attachment: incorrect-date-parsing.PNG

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0

Steps to reproduce:

Open console in Firefox browser. Create a date object by passing the value '21-Aug-2021' as the parameter to the constructor. The code for this would be new Date('21-Aug-2021').

Actual results:

In the output, it can be observed that the year is coming as a negative number. The exact output of the code is 'Tue Aug 21 -2021 00:00:00 GMT+0553 (India Standard Time)'.

Expected results:

The year should be positive number because hyphen is a separator not minus sign. Chrome parses the specified format correctly.

Comment 1

[Jitendra Kumar]

This bug is a duplicate of https://bugzilla.mozilla.org/show_bug.cgi?id=1693692