工作中，你可能会用到的几个函数

费德 2019/03/25 11:36 507 次

// 货币格式化，并保留两位小数
export function formatCurrency(num) {
  num = num.toString().replace(/\$|\,/g, '');
  if (isNaN(num))
    num = "0";
  let sign = (num == (num = Math.abs(num)));
  num = Math.floor(num * 100 + 0.50000000001);
  let cents = num % 100;
  num = Math.floor(num / 100).toString();
  if (cents < 10)
    cents = "0" + cents;
  for (var i = 0; i < Math.floor((num.length - (1 + i)) / 3); i++)
    num = num.substring(0, num.length - (4 * i + 3)) + ',' +
    num.substring(num.length - (4 * i + 3));
  return (((sign) ? '' : '-') + num + '.' + cents);
}