iOS Dev 35 has an arc memory management mechanism, do you still need to worry about memory overflow and other issues? --Interview Essentials

Answer: Must worry about, ARC also not omnipotent.

This is mainly related to the data type of the collection class.

For example, we define a mutable array muarr1, and then add an object P1 to the MUARR1, and this object retain once, equivalent to retaincount+1, only when the array removeobject:p1 delete the object, Or the array itself Muarr1=nil, or the array removeallobjects, it will release the object or all of its objects once.

iOS Dev 35 has an arc memory management mechanism, do you still need to worry about memory overflow and other issues? --Interview Essentials