ios - Accessing obj as property vs method param (style preferences) -

when comes accessing objects different methods in same class, understand, these 2 ways it. given do want hold property pointer object, better way go this? i've been thinking while, , wondered if there preference consensus.

#1:

nsarray *array = ... // array somewhere self.myarray = array;  [self dosomethingtomyarray]; 

this method takes no parameter , accesses array via own property via self

- (void)dosomethingtomyarray { // stuff with/to array via self.myarray [self.myarray ...]; } 

vs #2:

nsarray *array = ... // array somewhere self.myarray = array;  [self dosomething:array]; 

this method takes array , accesses array via own method parameter

- (void)dosomething:(nsarray *)array { // stuff with/to array via method parameter "array" [array ...]; } 

i think it's going depend on dosomethingtomyarray , calls it.

fairly obvious comments:

• if want more 1 array, need take argument;
• if you're doing logically more array class (e.g. you've implemented randomisation of order of array) it'd better category on nsarray rather being anywhere in class @ all;
• if there's possibility of subclasses wanting redefine manner in array obtained you'll want invoke getter somewhere;
• similar concerns apply if subclass or external actor should able intercede anywhere else in process.

beyond concerns there bunch of prefer stuff functional anyway — noting you're doing to array, not with array, in case you'd tend more towards self.myarray = [self processedformof:array] (or self.myarray = [array arraybydoingsomething]; if category tip makes sense).

so, ummm, don't think there's clear-cut answer.