fenzhi-utils/globalMethods/CustomArray/CustomArraySumSignle.js

分值前端项目的js函数库

/**
 * 数组求和
 * @param {array} arr 求和的数组
 * @returns {number}
 */
/**
let arr_1 = [1,2,3,4,5,null,'',undefined,Infinity]
CustomArraySumSignle(arr_1);// 15

let arr_2 = [1, 2, 3, 4, 5, 6];
CustomArraySumSignle(arr_2);// 21
 */
export function CustomArraySumSignle(arr = []) {
  if (!arr.length) return 0;
  return arr.reduce((pre, item) => {
    let curNum = 0;
    if ([null, 'null', '', 'undefined', undefined, Infinity].includes(item))
      curNum = 0;
    else if (typeof item === 'number') curNum = item;
    else if (typeof item === 'string') curNum = parseInt(item, 10);
    else if (typeof item === 'boolean') curNum = item ? 1 : 0;
    return pre + curNum;
  }, 0);
}