It is an integer representing where it comes in the list or array you are looping through.
The first element in an array will have an index of 0, the next one will have an index of 1, the next will be 2, etc, etc.
It is an integer representing where it comes in the list or array you are looping through.
The first element in an array will have an index of 0, the next one will have an index of 1, the next will be 2, etc, etc.