Allow locale.dow to accept integers?

I'm developing an app which needs a list of the days of the week, but right now the require("locale").dow() function only accepts a Date object. So I've had to do this:

let daysOfWeek = [];
for (let i = 1; i <= 7; i++) {

    daysOfWeek.push(require('locale').dow(new Date(1970, 1, i, 0, 0, 0, 0)); // 1/1/1970 was a Sunday
}
// Result: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"]

It seems to me it would be more efficient if the dow() function could accept an integer as well (0 = Sunday, 6 = Saturday) because right now it's just calling getDay() on the argument. That way, the code would be simpler:

let daysOfWeek = [];
for (let i = 0; i < 7; i++) {
    daysOfWeek.push(require('locale').dow(i);
}

Does this make sense?

P.S: I'm not saying the function should no longer accept Date objects: that would break previous implementations. Instead, it would accept both Date and integer arguments.

I just spotted your neat hack of require('locale').dow({getDay:()=>i}) that's a good solution for now.

But yes, we could definitely extend it - the only issue is it needs extending in firmware and the locale app