如何根据用户纬度和经度显示最近位置列表

Question

如何按距离升序显示最近的三个位置？我可以使用下面的代码显示单个最近的位置，但是在显示第二个第三个最近的位置时遇到了障碍。<div class="container p-3"><button onclick="getLocation()" class="mb-2">Find city nearest you</button><p id="closest"></p></div>var x = document.getElementById("closest");var storeLocations = {    "Atlanta": {latitude: 33.7489954, longitude: -84.3879824},  "Chicago": {latitude: 41.8781136, longitude: -87.6297982},    "Dallas": {latitude: 32.7766642, longitude: -96.7969879},  "Houston": {latitude: 29.7604267, longitude: -95.3698028},    "Los Angeles": {latitude: 34.0522342, longitude: -118.2436849},    "New York": {latitude: 40.7127837, longitude: -74.0059413},    "Philadelphia": {latitude: 39.9525839, longitude: -75.1652215},    "Phoenix": {latitude: 33.4483771, longitude: -112.0740373},    "Seattle": {latitude: 47.6062095, longitude: -122.3320708}}function getLocation() {    if (navigator.geolocation) {        navigator.geolocation.getCurrentPosition(findNearestStore);    } else {        x.innerHTML = "Location: Washington, D.C.";    }}function findNearestStore(position) {        var nearestStore = geolib.findNearest({latitude: position.coords.latitude, longitude: position.coords.longitude}, storeLocations);        x.innerHTML = "Location: " + nearestStore.key;}代码笔：https ://codepen.io/Codewalker/pen/LwWqrE

Answer 1

使用该orderByDistance功能，结合Array.slice如下：

var nearest3Stores = 

geolib

  .orderByDistance({

    latitude: position.coords.latitude, 

    longitude: position.coords.longitude

  }, storeLocations)

  .slice(0, 3);

编辑： 您将使用上述方法获得 3 个最近的位置，但要打印它们，您需要循环遍历它们，因为您获得了一个数组。无需.slice()再次使用。像这样：

y.innerHTML = "Locations: ";

nearest3Stores.forEach(function(store){

  y.innerHTML+= store.key + " ";

})

这是一个显示结果的代码笔。