How do I remove all objects from an NSMutableArray?

问题

I need to remove all objects from an NSMutableArray. I can't seem to do this by enumerating as the code crashes.

Can anyone tell me the best way to do this with a code example if possible?

回答1:

This should do the trick:

[myArray removeAllObjects];

回答2:

In Swift 3:

yourArry.removeAllObjects()

回答3:

  // In Swift     

 arrayName.removeAllObjects()

回答4:

in case [YourArray removeAllObjects]; doesn't work.

Then do it manually as below:

int c = (int)[YourArray count]-1;
for (int l = 0; l <= c; l++) {[YourArray removeObjectAtIndex:0];}

来源：https://stackoverflow.com/questions/3857920/how-do-i-remove-all-objects-from-an-nsmutablearray