Question

Is there any dramatic difference between functions and methods in Objective -C?

Answer 1

First, I’m a beginner in Objective-C, but I can say what I know.

Functions are code blocks that are unrelated to an object / class, just inherited from c, and you call them in the way:

// declaration
int fooFunction() {
    return 0;
}

// call
int a;
a = fooFunction();

While methods are attached to class / instance (object) and you have to tell the class / object to perform them:

// declaration
- (int)fooMethod {
    return 0;
}

// call
int a;
a = [someObjectOfThisClass fooMethod];