qdhezheng-license-web/public/v1/utils/patch.js

(function(win) {

    let Patch = win.Patch = {
        version: '0.0.1',
        description: '第三方库文件补丁包，避免库文件升级引起的兼容性问题'
    };

    Patch.msWidget = {
        description: 'avalon framework widget patch'
    };

    Patch.msWidget.getParams = function(data, vmodels) {
        let args = data.value.split(',');
        let optsName = args[2];
        for (let i = 0; i < vmodels.length; i++) {
            if (vmodels[i][optsName] && typeof vmodels[i][optsName] === "object") {
                return vmodels[i][optsName];
            }
        }
    }

    Patch.msWidget.initProcess = function(action, vmodel) {
        if (action) {
            action.call(this, vmodel);
        }
    }

    if (!String.prototype.startsWith) {
        String.prototype.startsWith = function(str) {
            if (str == null || str == undefined || str.length > this.length)
                return false;
            if (str.length == 0) {
                return true;
            }

            return this.substr(0, str.length) == str
        };

        String.prototype.endsWith = function(str) {
            if (str == null || str == undefined || str.length > this.length)
                return false;
            if (str.length == 0) {
                return true;
            }

            return this.substring(this.length - str.length) == str
        };

        if (!String.prototype.hasOwnProperty('trim')) {
            String.prototype.trim = function() {
                this.replace(/^\s+|\s+$/g, '');
            }
        }
    }

    Date.prototype.format = function(fmt) { //author: meizz
        let o = {
            "M+": this.getMonth() + 1, //月份
            "d+": this.getDate(), //日
            "h+": this.getHours(), //小时
            "m+": this.getMinutes(), //分
            "s+": this.getSeconds(), //秒
            "q+": Math.floor((this.getMonth() + 3) / 3), //季度
            "S": this.getMilliseconds() //毫秒
        };
        if (/(y+)/.test(fmt))
            fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
        for (let k in o)
            if (new RegExp("(" + k + ")").test(fmt))
                fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
        return fmt;
    }

    Number.prototype.round = function(precision) {
        let arg1 = this
        let m = Math.pow(10, precision);
        arg1 = Math.round(arg1 * m);
        return arg1 / m;
    }

    win.TypeUtil = {
        toString: function(obj) {
            if (!obj && obj !== 0) {
                return '';
            }
            return obj.toString();
        },
        toBoolean: function(obj) {
            if (typeof s === 'string') {
                return s === '1' || s === 't' || s === 'true' || s === 'T' || s === 'True' || s === 'TRUE';
            }

            return !!s;
        },
        toDate: function(obj) {
            if (!obj && obj !== 0) {
                return null;
            }

            let value = Date.parse(obj);
            return isNaN(value) ? null : new Date(value);
        },
        toDateString: function(val) {
            if (!val) {
                return ''
            }
            if (val instanceof Date) {
                return val.format('yyyy-MM-dd hh:mm:ss')
            }
            return "N/A"
        },
        toInt: function(obj) {
            if (!obj && obj !== 0) {
                return 0;
            }
            let value = parseInt(obj);
            return isNaN(value) ? 0 : value;
        },
        toFloat: function(obj) {
            if (!obj && obj !== 0) {
                return 0.0;
            }

            let value = parseFloat(obj);
            return isNaN(value) ? 0 : value;
        },
        isNullOrEmpty: function() {
            return this !== 0 && !this
        }
    }

    
    win.BigNumber = {
    /**
     * 加法函数，用来得到精确的加法结果
     * javascript的加法结果会有误差，在两个浮点数相加的时候会比较明显。这个函数返回较为精确的加法结果
     * @param {*} arg1
     * @param {*} arg2
     */
    add(arg1, arg2) {
      var r1, r2, m, c;
      try {
        r1 = arg1.toString().split('.')[1].length;
      } catch (e) {
        r1 = 0;
      }
      try {
        r2 = arg2.toString().split('.')[1].length;
      } catch (e) {
        r2 = 0;
      }
      c = Math.abs(r1 - r2);
      m = Math.pow(10, Math.max(r1, r2));
      if (c > 0) {
        var cm = Math.pow(10, c);
        if (r1 > r2) {
          arg1 = Number(arg1.toString().replace('.', ''));
          arg2 = Number(arg2.toString().replace('.', '')) * cm;
        } else {
          arg1 = Number(arg1.toString().replace('.', '')) * cm;
          arg2 = Number(arg2.toString().replace('.', ''));
        }
      } else {
        arg1 = Number(arg1.toString().replace('.', ''));
        arg2 = Number(arg2.toString().replace('.', ''));
      }
      return (arg1 + arg2) / m;
    },
    /**
     * 减法函数，用来得到精确的减法结果
     * javascript的减法结果会有误差，在两个浮点数相减的时候会比较明显。这个函数返回较为精确的减法结果
     * @param {*} arg1
     * @param {*} arg2
     */
    sub(arg1, arg2) {
      var r1, r2, m, n;
      try {
        r1 = arg1.toString().split('.')[1].length;
      } catch (e) {
        r1 = 0;
      }
      try {
        r2 = arg2.toString().split('.')[1].length;
      } catch (e) {
        r2 = 0;
      }
      m = Math.pow(10, Math.max(r1, r2)); // last modify by deeka //动态控制精度长度
      n = (r1 >= r2) ? r1 : r2;
      return ((arg1 * m - arg2 * m) / m).toFixed(n);
    },
    /**
     * 乘法函数，用来得到精确的乘法结果
     * javascript的乘法结果会有误差，在两个浮点数相乘的时候会比较明显。这个函数返回较为精确的乘法结果
     * @param {*} arg1
     * @param {*} arg2
     * @param {Number} precision
     */
    mul(arg1, arg2, precision) {
      let m = 0;
      const s1 = arg1.toString();
      const s2 = arg2.toString();
      try {
        m += s1.split('.')[1].length;
      } catch (e) {
        console.log(e);
      }
  
      try {
        m += s2.split('.')[1].length;
      } catch (e) {
        console.log(e);
      }
      const result = Number(s1.replace('.', '')) * Number(s2.replace('.', '')) / Math.pow(10, m);
      if (!Number.isInteger(precision)) {
        return result;
      }

      return Math.round(Math.pow(10, precision) * result) / Math.pow(10, precision);
    },
    /**
     * 除法函数，用来得到精确的除法结果
     * javascript的除法结果会有误差，在两个浮点数相除的时候会比较明显。这个函数返回较为精确的除法结果
     * @param {*} arg1
     * @param {*} arg2
     * @param {Number} precision
     */
    div(arg1, arg2, precision) {
      let t1 = 0;
      let t2 = 0;
      try {
        t1 = arg1.toString().split('.')[1].length;
      } catch (e) {
        console.log(e);
      }
      try {
        t2 = arg2.toString().split('.')[1].length;
      } catch (e) {
        console.log(e);
      }
      const r1 = Number(arg1.toString().replace('.', ''));
      const r2 = Number(arg2.toString().replace('.', ''));
      const result =  (r1 / r2) * Math.pow(10, t2 - t1);
      if (!Number.isInteger(precision)) {
        return result;
      }

      return Math.round(Math.pow(10, precision) * result) / Math.pow(10, precision);
    }
  };
  


})(window);