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emreozdil / Swift-Daily-Tips

:octocat: Daily Tips from Swift World
MIT License
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Unique Notification Observers #34

Closed christophaigner closed 5 years ago

christophaigner commented 5 years ago

Description

Using this function in a NotificationCenter extension allows you to add a new unique observer for notifications. This deals with the problem that one instance could be added as observer multiple times.