How can I check if an array index is out of range? [closed]

Question

How can I check if an array index is out of range? Or prevent it happening.

Answer 1

int index = 25;
if(index >= 0 && index < array.Length)
{
    //it exists
}

Source: Does Index of Array Exist

Answer 2

Another way of checking if an array is out of bounds is to make a function. This will check if the index is "in bounds". If the index is below zero or over the array length you will get the result false.

private bool inBounds (int index, int[] array) 
{
    return (index >= 0) && (index < array.Length);
}

Answer 3

Correct way would be

int index = 25;
if (index >= 0 && index < array.Length)
{}