Round to nearest X of interval

[LandonSchropp]

Sorry if this has already been answered, but I searched the issues and docs and didn't see anything like this.

Is there a way to round to the nearest X of an interval with date-fns? For example, is there anything like this?

roundToNearestMinute(new Date())
roundToNearestMinutes(new Date(), 5)
roundToNearest(new Date(), 5, "minutes")

startOfMinutes(new Date(), 5)
startOf(new Date(), 5, "minutes")

endOfMinutes(new Date(), 5)
endOf(new Date(), 5, "minutes")

[vgebrev]

This works for me to round minutes (not a general solution, feel free to expand, my use case was to just round down to the start of nearest 15min):

function roundToNearestMinutes(date, interval) {
    var roundedMinutes = Math.floor(getMinutes(date) / interval) * interval;
    return setMinutes(startOfMinute(date), roundedMinutes); 
}

// usage: round to nearest 15min
console.log(roundToNearestMinutes(new Date(2018, 7, 1, 8, 32, 42, 69), 15)); 
// 2018-Aug-01 08:30:00.000

[kossnocorp]

I like the idea. 👍 for roundToNearestMinutes

[xkizer]

#928

[kossnocorp]

This functionality was released as v2.0.0-alpha.23. See the change log: https://gist.github.com/kossnocorp/a307a464760b405bb78ef5020a4ab136#v200-alpha23