Simplify ListItemBase::validateAllowedValues()

Keshav Patel → made their first commit to this issue’s fork.

Changes made in the above MR (#3) to make code more readable, Please review.

Thanks for MR, please check my comments.

Looks like there is a bug with Drupal.WhiteSpace.ScopeIndent.IncorrectExact phpcs rule.

Update the MR, Please Review.

array_filter function:
The array_filter function with the provided callback function

function ($item) {
    return $item;
}

removes the empty strings('') and NULL values from $items array, giving out the filtered array.

Tests fail.

Nikolay Shapovalov, Re-ran the failed test job "#542553: PHP 8.2 MySQL 8" it Passed!

Any new features should have test coverage, but maybe this is a task. Didn't wnat to make that call though.

Also even simple tickets should still have a filled out issue summary.

Thanks.