Questions about collections
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Strange error appearing in React Native: Collection NSSetM was mutated while being enumerated
I started getting strange error in React Native, usually in Modals. Sometimes it works, sometimes it can throw an error: Collections <_NSSetM was mutated while being enumerated.
I am using expo 44....
Danil Poletaev
Votes: 0
Answers: 1
TypeError: 'Collection' object is not callable (Error with delete_one)
This code was working perfectly. It accesses a collection of the Mongo database, extracts the data and deletes the oldest data. However, since a week ago, although I can access the data, filter and di...
Juan Carlos Gonzalez Quesada
Votes: 0
Answers: 1
Repeatable Collection in Java
I was wondering if we had a repeatable key , value function in java ?
I'm working on some key value with Hashtable .The problem is I can't add any key that has been existed in the table .
would you ha...
Sina Barakchi
Votes: 0
Answers: 1
Why ListIterator<E> contains hasNext() method?
java.util.Iterator<E> has a boolean hasNext(); method. java.util.ListIterator<E> extends aforementioned interface. Yet documentation shows that it also explicitly contains boolean hasNext(...
finca
Votes: 0
Answers: 0