javascript - 添加逗号到我的字符串

Question

我需要帮助在 calcMileagePoints 函数中向 MileagePointsObj.innerHTML 添加逗号。现在它设置为四舍五入到最接近的 10。

<script type="text/javascript">     
        window.onload=function() {
            LapTimeObj = document.getElementById('InputLaptime');
            RaceLengthObj = document.getElementById('InputRaceLength');
            MileagePointsObj = document.getElementById('TDMileagePoints');
            document.getElementById('btnReset').onclick = resetInputs;
            document.getElementById('btnCalc').onclick = calcMileagePoints;
        }
        function resetInputs() {
            LapTimeObj.value = '';
            RaceLengthObj.value = '';
            MileagePointsObj.innerHTML = '';
        }
        function calcMileagePoints() {
            var LapTime = new Number(LapTimeObj.value);
            var RaceLength = new Number(RaceLengthObj.value);
            MileagePointsObj.innerHTML = '';

            MileagePointsObj.innerHTML = parseInt(((RaceLength*60*60)/LapTime)*10 / 10, 10) * 10;
        }
    </script>

提前致谢!

杰罗姆

Answer 1

正如评论中所述，使用 toLocaleString()

简单的例子

let number = 123456789;
let numberWithComma = number.toLocaleString();
console.log(numberWithComma);