framework4js/framework/transformer/Transformer.js

Framework-for-js is a better Javascript's framework

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;
var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
/**
 * Class Transformer 转换器
 * NewTransformer extends Transformer -> constructor(){super(data,payload)}
 */
var Transformer = /*#__PURE__*/function () {
  /**
   * Method constructor
   * @param {*} data
   * @param {*} payload
   * @returns
   */
  function Transformer(data) {
    var payload = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    (0, _classCallCheck2["default"])(this, Transformer);
    // data
    this._data = data;
    // payload
    this._payload = payload;
  }

  /**
   * Method transform
   * 转换方法
   * @param {Object|String|Number} data
   * @returns
   */
  (0, _createClass2["default"])(Transformer, [{
    key: "transform",
    value: function transform(data) {
      return data;
    }

    /**
     * Method create
     * 创建新数据
     * @return {Array/Object|String|Number|*}
     */
  }, {
    key: "create",
    value: function create(callback) {
      var _this = this;
      if (Array.isArray(this._data)) {
        return this._data.map(function (item, index) {
          if (typeof callback === 'function') {
            return callback(item, index);
          }
          return _this.transform(item);
        });
      } else {
        if (typeof callback === 'function') {
          return callback(this._data, 0);
        }
        return this.transform(this._data);
      }
    }

    /**
     * 格式化数字
     * @param {String|Number} number 待处理数字
     * @param {Number} places 小数点位数 -1为原样保留
     * @param {String} thousand 千位字符串 默认为空
     * @param {String} decimal 小数点替换字符 默认为.
     * @return {String|Number}
     */
  }, {
    key: "formatNumber",
    value: function formatNumber() {
      var number = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
      var places = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : -1;
      var thousand = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : '';
      var decimal = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : '.';
      // 只处理正常数字
      if (typeof number !== 'string' && typeof number !== 'number') {
        number = 0;
      }
      // 得到正常的数字
      number = isNaN(parseFloat(number)) ? 0 : number;
      var numSplit = number.toString().split('.');
      // 为-1时为保留当前数字的自带有效位数
      places = !isNaN(Math.abs(parseInt(places))) && parseInt(places) !== -1 ? Math.abs(parseInt(places)) : -1;
      // 保留原有小数点位数
      if (numSplit[1] && places === -1) {
        places = numSplit[1].length;
      } else if (!numSplit[1] && places === -1) {
        places = 0;
      }
      // 千位标记
      thousand = typeof thousand == 'string' ? thousand : ',';
      // 小数点标记
      decimal = decimal || '.';
      // 符号
      var negative = number < 0 ? '-' : '';
      var i, j;
      // 10进制
      i = parseInt(number = Math.abs(+number || 0).toFixed(places), 10).toString();
      j = (j = i.length) > 3 ? j % 3 : 0;
      // 处理后数据
      return negative + (j ? i.substr(0, j) + thousand : '') + i.substr(j).replace(/(\d{3})(?=\d)/g, '$1' + thousand) + (places ? decimal + Math.abs(number - i).toFixed(places).slice(2) : '');
    }

    /**
     * formatDate 日期格式化
     * @param {string|number} timestamp
     * @returns
     */
  }, {
    key: "formatDate",
    value: function formatDate() {
      var timestamp = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : Date.now();
      // 参数不是数字说明发过来的已经是格式化的时间
      if (typeof timestamp === 'string') {
        var formatDate = new Date(timestamp);
        if (!isNaN(formatDate)) {
          // 返回不带毫秒的时间戳
          return this.formatDate(Date.parse(formatDate));
        }
        return this.formatDate();
      }
      var date = new Date(timestamp);
      var Y = date.getFullYear();
      var M = date.getMonth() + 1 < 10 ? '0' + (date.getMonth() + 1) : date.getMonth() + 1;
      var D = date.getDate() < 10 ? '0' + date.getDate() : date.getDate();
      var h = date.getHours() < 10 ? '0' + date.getHours() : date.getHours();
      var m = date.getMinutes() < 10 ? '0' + date.getMinutes() : date.getMinutes();
      var s = date.getSeconds() < 10 ? '0' + date.getSeconds() : date.getSeconds();
      // 星期
      var weekIndex = date.getDay();
      var weeks = {
        '0': '日',
        '1': '一',
        '2': '二',
        '3': '三',
        '4': '四',
        '5': '五',
        '6': '六'
      };
      var ap = date.getHours() >= 0 && h < 12 ? 'AM' : 'PM';
      var apCn = date.getHours() >= 0 && h < 12 ? '上午' : '下午';
      // 返回JSON格式时间
      return {
        Y: Y.toString(),
        M: M.toString(),
        D: D.toString(),
        h: h.toString(),
        m: m.toString(),
        s: s.toString(),
        week: weeks[weekIndex],
        ap: ap,
        apCn: apCn
      };
    }
  }]);
  return Transformer;
}();
exports["default"] = Transformer;