Javascript 将秒转换为分钟毫秒格式

Question

我有这样的数组:

var a = [18.86, 64.48, 99.57, 106.6, 108, 259.69];

我想把这个数组转换成这样:

var new_a = [00:18.86, 01:04.48, 01:39.57, 01:46.60, 01:48.00, 04:19.69];

请帮助我..谢谢。

Answer 1

试试这个:

var arr = [];
var a = [18.86, 64.48, 99.57, 106.6, 108, 259.69];
a.forEach(function(e) {
  var minute = parseInt(e / 60);
  var intPart = parseInt(e - 60 * minute);
  var fltPart = Math.round(((e - 60 * minute) - intPart) * 100);
  arr.push((minute < 10 ? '0' : '') + minute + ':' + (e - 60 * minute < 10 ? '0' : '') + intPart + '.' + (fltPart < 10 ? '0' : '') + fltPart);
});
console.log(arr);