element-react-codish/src/input-number/util.js

Element UI for React

/* @flow */

export function accSub(arg1: number, arg2: number): number {
  var r1, r2, m, n;
  try {
    r1 = arg1.toString().split('.')[1].length;
  } catch (e) {
    r1 = 0;
  }
  try {
    r2 = arg2.toString().split('.')[1].length;
  } catch (e) {
    r2 = 0;
  }
  m = Math.pow(10, Math.max(r1, r2));
  n = (r1 >= r2) ? r1 : r2;
  return parseFloat(((arg1 * m - arg2 * m) / m).toFixed(n));
}

export function accAdd(arg1: number, arg2: number): number {
  var r1, r2, m, c;
  try {
    r1 = arg1.toString().split('.')[1].length;
  } catch (e) {
    r1 = 0;
  }
  try {
    r2 = arg2.toString().split('.')[1].length;
  } catch (e) {
    r2 = 0;
  }
  c = Math.abs(r1 - r2);
  m = Math.pow(10, Math.max(r1, r2));
  if (c > 0) {
    var cm = Math.pow(10, c);
    if (r1 > r2) {
      arg1 = Number(arg1.toString().replace('.', ''));
      arg2 = Number(arg2.toString().replace('.', '')) * cm;
    } else {
      arg1 = Number(arg1.toString().replace('.', '')) * cm;
      arg2 = Number(arg2.toString().replace('.', ''));
    }
  } else {
    arg1 = Number(arg1.toString().replace('.', ''));
    arg2 = Number(arg2.toString().replace('.', ''));
  }
  return (arg1 + arg2) / m;
}