Show notification with error message, when trying to add duplicate module

unkelhoebbi / semester-scheduler

Semester scheduler

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Show notification with error message, when trying to add duplicate module #20

Closed StefanieJaeger closed 2 years ago

StefanieJaeger commented 2 years ago

When a new error message should be shown, before previous one is hidden, then the new one will be removed, when the timer for the old one finished. => Save timer globally and clearTimeout(timer) before setting a new one