supabase/examples/nextjs-live-tracker-map/lib/utils.js

export function RoundToFixDecimals(value, numDecimals = 5) {
  function addZero(s, size) {
    while (s.length <= (size || 2)) {
      s = s + '0'
    }
    return s
  }

  const temp = addZero('1', numDecimals)
  const tempNum = parseInt(temp, 10)
  return Math.round((value + Number.EPSILON) * tempNum) / tempNum
}