How to change value of a null element in an array?

Questions & Answers
1

So i had a custom class and an array of that class in my script. I want to change a value of a null element but unity keep having nullreferenceexception error. How to fix this?

2

Hi @Long2904, show us the relevant code. In my understanding, you will not get a null reference error on setting a null array element a value, or even setting it to null, only on if you to read one as some expected value type.

// say you define class MyObject with a string ID and constructor

MyObject[] myObjects = new MyObject[];  // all are null from start
myObjects[0] = new MyObject( "BabaYaga");  // will not throw  null error 
myObjects[0] = null; // will not throw  null error 
Debug.Log( myObjects[0].ID ); // *** will throw null error
myObjects[0].ID = "BabaYaga" // *** will throw null error
if( myObjects[0] == null )  // will not throw null error
if( myObjects[0].ID != "BabaYaga" || myObjects[0] == null )  // *** will  throw null error
if( myObjects[0] == null  || myObjects[0].ID != "BabaYaga"  )  // will not  throw null error