Question

我正在尝试在我的react应用程序上实现Leaflet map组件。这是我的组件的样子：

import React from "react";
import { Map, Marker, Popup, TileLayer } from "react-leaflet";
import "./styles.scss";

const position = [51.505, -0.09];

const LocationMap: React.FC = () => {
  return (
    <section className="find-container container">
      <h2 className="find-title title">Find us</h2>
      <Map center={position} zoom={12}>
        <TileLayer
          url="https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png"
          attribution="&copy; <a href=&quot;http://osm.org/copyright&quot;>OpenStreetMap</a> contributors"
        />
      </Map>
    </section>
  );
};

export default LocationMap;

当我运行“ npm start”时，项目无法编译，并显示此错误：

No overload matches this call.
  Overload 1 of 2, '(props: Readonly<MapProps>): Map<MapProps, Map>', gave the following error.
    Type 'number[]' is not assignable to type 'LatLng | LatLngLiteral | LatLngTuple | undefined'.
      Type 'number[]' is missing the following properties from type '[number, number]': 0, 1
  Overload 2 of 2, '(props: MapProps, context?: any): Map<MapProps, Map>', gave the following error.
    Type 'number[]' is not assignable to type 'LatLng | LatLngLiteral | LatLngTuple | undefined'.
      Type 'number[]' is not assignable to type 'LatLngTuple'.  TS2769

有人知道如何解决吗？

Answer 1

TypeScript抱怨，因为center属性被声明为数组（number[]），而该属性应为元组类型：

const position:[number,number] = [51.505, -0.09];

或LatLngLiteral类型：

const position: LatLngLiteral = { lat: 51.505, lng: -0.09 };

或LatLng类型：

const position = new LatLng(51.505,-0.09);

总而言之，要在TypeScript中使用react-leaflet，需要安装以下软件包：

leaflet作为依赖项
react-leaflet和类型定义@types/react-leaflet

最后但并非最不重要的一点是，需要包含as per documentation传单CSS文件，例如，通过index.html：

<link rel="stylesheet" href="https://unpkg.com/leaflet@1.6.0/dist/leaflet.css"
   integrity="sha512-xwE/Az9zrjBIphAcBb3F6JVqxf46+CDLwfLMHloNu6KEQCAWi6HcDUbeOfBIptF7tcCzusKFjFw2yuvEpDL9wQ=="
   crossorigin=""/>

使用react-leaflet时如何解决``TS2769没有过载匹配此调用''

1 个答案: