Dingdong_app/Utils/ListUtil.js

/* eslint-disable prefer-destructuring */
/* eslint-disable no-underscore-dangle */
export default class ListUtil {
  constructor(list) {
    let _list = [];
    if (list && list.constructor === String) {
      _list = list.split(",");
    } else {
      _list = list || [];
    }

    _list = [...new Set(_list)];
    _list = _list.filter(item => {
      return item !== "" && item != null;
    });
    this.list = _list;
  }

  getLength() {
    return this.list.length;
  }

  // 获取正反面照片
  getOneTow(one, tow) {
    const _list = [...this.list];
    let oneVal = "";
    let towVal = "";
    if (_list.length > 0) {
      oneVal = _list[0];
    }
    if (_list.length > 1) {
      towVal = _list[1];
    }

    if (one) {
      one(oneVal);
    }
    if (tow) {
      tow(towVal);
    }
  }

  setImgVal(list) {
    const _list = [...this.list];
    _list.forEach((item, index) => {
      if (list[index]) {
        list[index](item);
      }
    });
  }

  getKey(key) {
    const _list = [...this.list];
    if (_list.length > 0) {
      return _list.pop()[key];
    }
    return "";
  }

  getListValue(key) {
    let _list = [...this.list];
    if (key) {
      _list = _list.map(item => {
        return item[key];
      });
    }
    return _list.join(",");
  }
}