fehler | Rust does n't have exceptions

Your problem doesn't come from the 2 strings you are comparing, it comes from the invalid parameter into the Workbooks-collection.
As you have Workbook object already stored in wks, you simply can write

As you've noticed, the combination of your tikz picture and babel causes the problem. You can fix this by loading the babel tikz library:

You need a combined key with Datum and Material.

If you ignore the timezone and the time part, you can just extract the date part as below and use it as the key for holder.

This response means that the Discord client tried to use an old version of the command that it had cached. If you simply retype the command, it should use the updated command instead.

The cause of this behavior is from calling upsertCommand when you start your bot. This will replace the existing command and make the client cache invalid.

You can use updateCommands().addCommands(allOfYourCommands).queue() instead, to prevent this from happening. However, keep in mind you need to put all your commands in addCommands(...), not just one at a time!

A possible solution:

If I understand this correctly, what you want to do it to apply a function to each element of a list so that it returns a character vector (that you can add to a data frame, if you so wish).

This can be easily accomplished with the purrr family of functions. The following takes each element df$Col_3 and runs the function (with each element being the x in the given function)

Cause you define it as undefined in your data object.

Make the axios call inside async created() function and assign it to this.bookings, then it should be gone.

use await instead of callbacks on the getBookings and then do this.

You can use mapState in computed like this.