initializeArrayWithRange
Initializes an array containing the numbers in the specified range where start
and end
are inclusive with their common difference step
.
Use Array.from()
to create an array of the desired length, (end - start + 1)/step
, and a map function to fill it with the desired values in the given range.
You can omit start
to use a default value of 0
.
You can omit step
to use a default value of 1
.
const initializeArrayWithRange = (end, start = 0, step = 1) =>
Array.from(
{ length: Math.ceil((end - start + 1) / step) },
(v, i) => i * step + start
);
initializeArrayWithRange(5); // [0,1,2,3,4,5]
initializeArrayWithRange(7, 3); // [3,4,5,6,7]
initializeArrayWithRange(9, 0, 2); // [0,2,4,6,8]