finance/utils/num.js

const num = {
  // 清除浮点
  // 乘法
  ride(a, b) {
    var as = Math.pow(10, digitLength(a))
    var as2 = Math.pow(10, digitLength(b))
    if (digitLength(a) >= digitLength(b)) {
      return (as * a * as * b) / as / as//这里要除以最小公倍数的平方
    } else {
      return (as2 * a * as2 * b) / as2 / as2
    }
    function digitLength(e) {
      var e1 = (e + '').split('');
      var e2 = e1.findIndex((item) => item = '.')
      return e1.length - 1 - e2;
    }
  },

  // 除法
  except(a, b) {
    var as = Math.pow(10, digitLength(a))
    var as2 = Math.pow(10, digitLength(b))
    if (digitLength(a) >= digitLength(b)) {
        return ((as * a) / (as * b))
    } else {
        return ((as2 * a) / (as2 * b))
    }
    function digitLength(e) {
      var e1 = (e + '').split('');
      var e2 = e1.findIndex((item) => item = '.')
      return e1.length - 1 - e2;
    }
  },

};
export default num;