question 1 - how to initialize array with default value
question 2 - how to check weather there is value inside array or no value (garbage value)
this is my program
int[] IdArray(999);

if(IdArray[Int_GetId]!=null)
{

IdArray[Int_GetId] = enemyLife;

}

it shows me error
no conversion from int& to int available

no conversion from const int' to 'int available


then i tried
int[] IdArray(999);

if(IdArray[Int_GetId]!="")
{

IdArray[Int_GetId] = enemyLife;

}

it shows me error
no conversion from 'string@&' to 'int available


the solution i guessed to initialize the array element with  -1
but how to do that without using for loop

Hi, I rewrote your code snippet using a optional class type.


I've never seen classes being used in 3D Rad previously, but this works.

Further reading: https://www.angelcode.com/angelscript/sdk/docs/manual/doc_script_class_desc.html

Also, from your snippet, you don't seem to understand static typing. I recommend you learning a statically typed language like C, C#, C++, Rust, etc...

You could also try reading https://en.wikipedia.org/wiki/Type_system

Thanks NicusorN5 i will try and revert.
There is another thing. I want to initialise 2 dimentional array with 10 x 10 elements. Is this possible in 3d rad
I tried Int[][]  idarray;  this don't give error and also not executing.
But Int[][]  idarray(10)(10) give error....why
How to initialise 2 dimension arrays

Take a look here https://classdev.net/page/thread/1NYpSY_3AWNO25sk/multi-dimensional-arrays

I looked into it
The array is initiased with variable
I want to initialise at runtime.
3drad give error

in the 1st posts, you did not define 'enemyLife' as an int, therefore i assume it is a string or otherwise defined, if so you must convert the string to an int yourself

class Optional
{
   int Value;
   bool HasValue;

   Optional(int value)
   {
      Value = value;
      HasValue = true;
   }
   Optional()
   {
      Value = 0;
      HasValue = false;
   }
}

void Main()
{
   int enemyLife = 200;
   int Int_GetId = 2;

  Optional[] IdArray(100);

   if(IdArray[Int_GetId].HasValue)
   {
      IdArray[Int_GetId].Value = enemyLife;
   }
}




the above code is giving error
  Optional[CURSER IS BLINKING HERE] IdArray(100);


the error is - EXPECTED EXPRESSION VALUE

Hi, I can't reproduce the compilation error inside 3D Rad. I've tried copying your snippet to a Script object, and "Check Script" doesn't report anything.

I've used version 7.22.