Make an array of numbers from 0 to length - 1, with the length being the number passed as the first parameter.
countingArray<5> // [0, 1, 2, 3, 4] Copy
countingArray<5> // [0, 1, 2, 3, 4]
Make an array of numbers from 0 to length - 1, with the length being the number passed as the first parameter.