Number.range() proposal for ECMAScript in currently on stage-1 and if it makes to stage-4(I strongly hope it will) one day we would be able to use Number.range() and BigInt.range in Javascript.

Currently in JavaScript, if we were to be implement range we would:

const range = (start, end) => [...Array(end - start + 1)].map((_, indx) => start + indx);

Or use generators, many other ways or ended up libs like lodash, ramda or likes.

With this proposal we could do something like:

[...Number.range(1, 100, 2)] // odd number from 1 to 99

[...Number.range(0, 5, { step: 1.75 })];
//[0, 1.75, 3.5]

[...Number.range(5, -6, -1)]
(11) [5, 4, 3, 2, 1, 0, -1, -2, -3, -4, -5]

So, it is basically: Number.range(start, end, option)

We can also use it with the iterator helper proposal.

Number.range(0, Infinity)
    .take(10)
    .filter(x => !(x % 2))
    .toArray();

// [0, 2, 4, 6, 8]

Similarly with BigInt.range

[...BigInt.range(-2n, 3n)]
// [-2n, -1n, 0n, 1n, 2n]

Hope you liked this proposal by Jack Works, feel free to provide your feedback as this on Stage-1 as of today.