Bug #93729: Wrong check for undefined in DateTimePicker - TYPO3 Core - TYPO3 Forge

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Bug #93729

closed

Wrong check for undefined in DateTimePicker

Added by Nikita Hovratov over 3 years ago. Updated over 3 years ago.

Status:

Closed

Priority:

Should have

Assignee:

Category:

Backend JavaScript

Target version:

11.2

Start date:

2021-03-13

Due date:

% Done:

100%

Estimated time:

TYPO3 Version:

PHP Version:

Tags:

Complexity:

Is Regression:

Sprint Focus:

Description

64      if (element.dataset.datepickerInitialized !== 'undefined') {
65        return;
66      }

Should be typeof check

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Updated by Gerrit Code Review over 3 years ago

Status changed from New to Under Review

Patch set 1 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/c/Packages/TYPO3.CMS/+/68374

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Updated by Tymoteusz Motylewski over 3 years ago

any hints how to reproduce it? CR seems easy, but would like to give "verified" vote too.

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Updated by Nikita Hovratov over 3 years ago

Tymoteusz Motylewski wrote in #note-2:

any hints how to reproduce it? CR seems easy, but would like to give "verified" vote too.

I found this by upgrading my extension to v11. I don't know if you can find an error in TYPO3 itself.
But this is definetely wrong if you compare this with version 10.4, where the typeof check was still present:

    const $dateTimeFields = $(selector || this.fieldSelector).filter((index: number, element: HTMLElement): boolean => {
      return typeof $(element).data('DateTimePicker') === 'undefined';
    });