JavaScript算法教程之sku（库存量单位）详解

/**
 * 得到结果
 * @param {string} key 查找关键字以；分割
 * @return {array} 所有可选属性数组
*/
getResult(key, isRealFind = true) {
 // 如缓存中存在，则直接返回结果
 if (this.cacheData[key] && isRealFind) {
 this.result = this.cacheData[key];
 this.resultID = this.goodsDict[key] ? this.goodsDict[key] : '';
 console.log(this.resultID);
 return this.result;
 }
 // 继续查找
 let result = '';
 for (let _key in this.goodsDict) {
 let keyArr = key.split(';');
 let _keyArr = _key.split(';');
 let arr = keyArr.concat(_keyArr);
 arr = Array.from(new Set(arr));
 if (arr.length === _keyArr.length) {
 result += _key;
 }
 }
 if (isRealFind) {
 // 所有可选属性
 this.result = result.split(';');
 let _keyArr = key.split(';');
 if (_keyArr[_keyArr.length - 1] === '') {
 _keyArr.pop();
 }
 for (let i = 0; i < _keyArr.length; i++) {
 let _arr = key.split(';');
 let str = _arr.splice(i, 1);
 let oldResult = this.getResult(_arr.join(';'), false);
 let index = '';
 // 获取该key所在索引
 this.allKeys.forEach((item, i) => {
 if (item.indexOf(str.join('')) !== -1) {
  index = i;
  return;
 }
 });
 this.allKeys[index].forEach(item => {
 if (oldResult.indexOf(item) !== -1) {
  this.result.push(item);
 }
 });
 }
 this.result = Array.from(new Set(this.result));
 // 缓存数据
 this.cacheData[key] = this.result;
 this.resultID = this.goodsDict[key] ? this.goodsDict[key] : '';
 console.log(this.resultID);
 return this.result;
 } else {
 return result;
 }
}