linking-utils/utils.js

My

/**
 * 检测当前值是否是一个对象
 * @param {*} options 对象
 * @returns
 */
export const isObject = (options) => {
  let type = typeof options;
  if (options !== null && (type === "object" || type === "function"))
    return true;
};
/**
 * 小数相加计算
 * @param {*} coefficient 用来计算出最大次幂
 * @returns
 */
const coefficient = (num) => {
  num = num + "";
  let [, char = ""] = num.split("."),
    len = char.length;
  return Math.pow(10, len); // -> 10**len
};
export const plus = (num1, num2) => {
  num1 = +num1;
  num2 = +num2;
  // 计算的内容必须为数字类型
  if (isNaN(num1) || isNaN(num2)) return NaN;
  let max = Math.max(coefficient(num1), coefficient(num2));
  return (num1 * max + num2 * max) / max;
};