Check out example codes for "check if that inex exisits array c#". It will help you in understanding the concepts better.

Code Example 1

var array=new List<int>(1,2,3);
int count=5;
for(int i=0;i<count;i++){
	if(array.Count>i){  //this is way you can check wheater 
      	//do something   //index count equals to array count
	}
}

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