我是新来的反应-传单。我正在做一个Flask React项目,我正在尝试加载一个react-leaflet地图。我得到以下错误:
Uncaught TypeError: Cannot use 'in' operator to search for 'default' in undefined
at react-leaflet.js:7
at React__default (react-leaflet.js:4)
at react-leaflet.js:5
版本:
react-leaflet : v1.9.1 leaflet.css : v1.3.1 react-
我有一个包含4360个地理标记的数据集,我希望将其显示在传单地图上。CircleMarker工作得很好,构建的地图的性能也不错。然而,构建地图需要花费太多的时间(大约20秒)。在没有react的情况下,构建标记只需要几分之一秒的时间。有没有一些性能提示或技巧可以用来让它更快地构建地图?
import * as React from 'react';
import { Component } from 'react';
import { LatLng } from 'leaflet';
import { Map, TileLayer, Circle
我在试图修复React-Leaflet / Leaflet希望定义窗口并导致盖茨比构建npm run build失败的问题。
错误消息:
WebpackError: window is not defined
- leaflet-src.js:230
~/leaflet/dist/leaflet-src.js:230:1
- leaflet-src.js:7 version
~/leaflet/dist/leaflet-src.js:7:1
- leaflet-src.js:10 Object.exports.__esModule
~/leaflet/
我试图在reactjs中添加自定义按钮,以便缩放到传单地图--这是我的代码
import React, {Component} from 'react';
import { Map, TileLayer, Marker, Popup, ZoomControl } from 'react-leaflet';
import Control from 'react-leaflet-control';
import Button from '@material-ui/core/Button';
class LeafletMapCompo
我想在缩放后刷新单张地图的圆圈: import React from "react";
import {
Map as LeafletMap,
TileLayer,
Marker,
Circle,
Tooltip,
Popup
} from "react-leaflet";
import MarkerClusterGroup from "react-leaflet-markercluster";
import data from "./data.json";
const TILE_LAYER_AT