js数字过大转换为万

function transNumberToShort (value, decimal = 0) {
  if (isNaN(value)) {
    return
  }
  value=Number(value)
  const BASE = 10000;
  const SIZES = ["", "万", "亿", "万亿"];
  let i = undefined;
  let str = "";
  if (value < BASE) {
    str = value.toFixed(decimal);
  } else {
    i = Math.floor(Math.log(value) / Math.log(BASE));
    str = `${((value / Math.pow(BASE, i))).toFixed(decimal)}${SIZES[i]}`;
  }
  return str;
}