Home/ Questions/Q 7781625
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-01T19:17:17+00:00

I am attempting to fill up NSMutableArray s with an unknown sized list of

  • 0

I am attempting to fill up NSMutableArrays with an unknown sized list of strings.

I have declared the arrays and am reading in from a plist successfully into my tempWordStr, but when I try to append the array from the tempWordStr, the array object remains null. I tried a couple of variants (below) but the _wordLengthArray remains empty with 0 objects either way even though the tempWordStr has the string. This seems pretty basic but have been struggling for a couple of hours.

[_wordLengthArray addObject:tempWordStr];
[self.wordLengthArray addObject:tempWordStr];
Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Before you can call a method, such as addObject: on an object, such as NSMutableArray you need to initialize it. So before all of your code, do _wordLengthArray = [NSMutableArray array];

    Speaking more generally, if you call a method on an object that hasn’t been initialized (aka it’s nil) it simply returns nil/null. That’s why you don’t get any errors, it just silently fails.

    • 0