how to compare two NSMutableArray?

Question

How can I compare two NSMutableArray ? if both are same than it should return true otherwise false.

Thanks...

Answer 1

return ([array1 isEqualToArray:array2]);

returns YES if arrays are equal else returns NO

Answer 2

Does isEqualToArray: method help you?

Other way is to iterate through both arrays and compare each object using isEqual: method. It is the same to calling isEqualToArray:. Note that in both variants you should implement isEqual: method in your array object class if it in not a standard class.

And right before this operations you can just compare their length, if they are not equal so there is no point of spending resources on more complicated calculations.