js转换金额，元，万元

js转换金额，元，万元。。

 export function strNumSize(tempNum) {
  var stringNum = tempNum.toString();
  var index = stringNum.indexOf(".");
  var newNum = stringNum;
  if (index != -1) {
    newNum = stringNum.substring(0, index);
  }
  return newNum.length;
}

 export function unitConvert(num) {
  var moneyUnits = ["元", "万元", "亿元", "万亿"];
  var dividend = 10000;
  var curentNum = num;
  //转换数字
  var curentUnit = moneyUnits[0];
  //转换单位
  for (var i = 0; i < 4; i++) {
    curentUnit = moneyUnits[i];
    if (strNumSize(curentNum) < 5) {
      break;
    }
    curentNum = curentNum / dividend;
  }
  var m = { num: 0, unit: "" };
  m.num = curentNum.toFixed(2);
  m.unit = curentUnit;
  return m;
}

var totalAmount = unitConvert(5000000);
this.totalAmount = totalAmount.num + totalAmount.unit;