v2.21.1以上版本，地图设置为无底图模式时，获取经纬度的控件会显示(0,0) about l7

[lvisei]

L7 研发环境调试正常

打包发布后，业务线上使用都会显示 (0,0)

可能是打包编译时，代码出现的问题？

[lvisei]

2.21.1 版本编译后的结果

https://npmmirror.com/package/@antv/l7-map/files/es/handler/events/map_mouse_event.js?version=2.21.2#L14

2.21.1 版本编译的结果

https://npmmirror.com/package/@antv/l7-map/files/es/handler/events/map_mouse_event.js?version=2.21.1#L41-L64

[lvisei]

编译前的代码，四年前写的没有动过

L7/packages/map/src/handler/events/event.ts

Lines 4 to 10 in 41ea5dd

	export class Event {
	public type: string;
	constructor(type: string, data: any = {}) {
	merge(this, data);
	this.type = type;
	}
	}

L7/packages/map/src/handler/events/map_mouse_event.ts

Lines 11 to 65 in 41ea5dd

	export default class MapMouseEvent extends Event {
	/**
	* `true` if `preventDefault` has been called.
	* @private
	*/
	public type:
	| 'mousedown'
	| 'mouseup'
	| 'click'
	| 'dblclick'
	| 'mousemove'
	| 'mouseover'
	| 'mouseenter'
	| 'mouseleave'
	| 'mouseout'
	| 'contextmenu';
	/**
	* The `Map` object that fired the event.
	*/
	public target: Map | EarthMap;
	/**
	* The DOM event which caused the map event.
	*/
	public originalEvent: MouseEvent;
	/**
	* The pixel coordinates of the mouse cursor, relative to the map and measured from the top left corner.
	*/
	public point: Point;
	/**
	* The geographic location on the map of the mouse cursor.
	*/
	public lngLat: LngLat;
	public defaultPrevented: boolean;
	/**
	* @private
	*/
	constructor(
	type: string,
	map: Map | EarthMap,
	originalEvent: MouseEvent,
	data: any = {},
	) {
	const point = DOM.mousePos(map.getCanvasContainer(), originalEvent);
	const lngLat = map.unproject(point);
	super(type, merge({ point, lngLat, originalEvent }, data));
	this.defaultPrevented = false;
	this.target = map;
	}

[lvisei]

看似无毒无害，简化复现一下

class A {
  public arg1: number
  constructor(arg1: number, arg2: number) {
    this.arg1 = arg1;
    this.arg2 = arg2;
  }
}


class B extends A {
  public arg2: number
  public arg3: number
  constructor(arg1: number, arg2: number, arg3: number) {
    super(arg1, arg2);
    this.arg3 = arg3;
  }
}

const b = new B(1, 2, 3)
console.log(b)

再简化一下转化为 JS 的

class A {
   arg1
  constructor(arg1, arg2) {
    this.arg1 = arg1;
    this.arg2 = arg2;
  }
}


class B extends A {
   arg2
   arg3
  constructor(arg1, arg2, arg3) {
    super(arg1, arg2);
    this.arg3 = arg3;
  }
}

const b = new B(1, 2, 3)
console.log(b)

执行结果是什么？

[lvisei]

打包时，使用了 Babel 进行了编译，默认配置编译后的结果

babel repl

[lvisei]

给 babel 如果加了 @babel/plugin-transform-typescript 插件，编译后的结果

babel repl

[lvisei]

如果使用 typescript 编译

TS Playground

忽略编译错误，执行结果

[spadek-w]

@lvisei 所以老哥最后如何改这个问题。加上pnpm add --save-dev @babel/plugin-transform-typescript ？？？

[lvisei]

最后如何改这个问题。加上pnpm add --s

等今天修复了发个版本

[lvisei]

等今天修复了发个版本

#2437