kd-aiot-frontend-aps/src/utils/math.js

export function add(a, b) {
  let aLen = (a + '').split('.')[1]?.length || 0;
  let bLen = (b + '').split('.')[1]?.length || 0;

  const powN = Math.pow(10, Math.max(aLen, bLen));

  return (a * powN + b * powN) / powN;
}

export function multiply(arg1, arg2) {
  var m = 0,
    s1 = arg1.toString(),
    s2 = arg2.toString();
  try {
    m += s1.split('.')[1].length;
  } catch (e) {}
  try {
    m += s2.split('.')[1].length;
  } catch (e) {}
  return (
    (Number(s1.replace('.', '')) * Number(s2.replace('.', ''))) /
    Math.pow(10, m)
  );
}