Question

我有这个对象

{
"results": [
    {
        "address_components": [
            {
                "long_name": "Abdon Cifuentes - Carlos Silva Vildosola",
                "short_name": "Abdon Cifuentes - Carlos Silva Vildosola",
                "types": [
                    "point_of_interest",
                    "establishment"
                ]
            },
            {
                "long_name": "Concepción",
                "short_name": "Concepción",
                "types": [
                    "locality",
                    "political"
                ]
            },
            {
                "long_name": "Concepción",
                "short_name": "Concepción",
                "types": [
                    "administrative_area_level_3",
                    "political"
                ]
            },
            {
                "long_name": "Concepcion",
                "short_name": "Concepcion",
                "types": [
                    "administrative_area_level_2",
                    "political"
                ]
            },
            {
                "long_name": "Región del Bío Bío",
                "short_name": "Región del Bío Bío",
                "types": [
                    "administrative_area_level_1",
                    "political"
                ]
            },
            {
                "long_name": "Chile",
                "short_name": "CL",
                "types": [
                    "country",
                    "political"
                ]
            }
        ],
        "formatted_address": "Abdon Cifuentes - Carlos Silva Vildosola, Concepción, Concepción, Región del Bío Bío, Chile",
        "geometry": {
            "location": {
                "lat": -36.8000307,
                "lng": -73.0487725
            },
            "location_type": "APPROXIMATE",
            "viewport": {
                "northeast": {
                    "lat": -36.7986817197085,
                    "lng": -73.0474235197085
                },
                "southwest": {
                    "lat": -36.8013796802915,
                    "lng": -73.05012148029151
                }
            }
        },
        "place_id": "ChIJxy0y5a61aZYRq9rC4fyIYfg",
        "types": [
            "bus_station",
            "transit_station",
            "point_of_interest",
            "establishment"
        ]
    },
    {
        "address_components": [
            {
                "long_name": "Concepción",
                "short_name": "Concepción",
                "types": [
                    "locality",
                    "political"
                ]
            },
            {
                "long_name": "Concepción",
                "short_name": "Concepción",
                "types": [
                    "administrative_area_level_3",
                    "political"
                ]
            },
            {
                "long_name": "Concepcion",
                "short_name": "Concepcion",
                "types": [
                    "administrative_area_level_2",
                    "political"
                ]
            },
            {
                "long_name": "Región del Bío Bío",
                "short_name": "Región del Bío Bío",
                "types": [
                    "administrative_area_level_1",
                    "political"
                ]
            },
            {
                "long_name": "Chile",
                "short_name": "CL",
                "types": [
                    "country",
                    "political"
                ]
            }
        ],
        "formatted_address": "Concepción, Concepción, Región del Bío Bío, Chile",
        "geometry": {
            "bounds": {
                "northeast": {
                    "lat": -36.76354250000001,
                    "lng": -72.98195799999999
                },
                "southwest": {
                    "lat": -36.8890559,
                    "lng": -73.0841332
                }
            },
            "location": {
                "lat": -36.8201352,
                "lng": -73.0443904
            },
            "location_type": "APPROXIMATE",
            "viewport": {
                "northeast": {
                    "lat": -36.76354250000001,
                    "lng": -72.98195799999999
                },
                "southwest": {
                    "lat": -36.8890559,
                    "lng": -73.0841332
                }
            }
        },
        "place_id": "ChIJO8a70s21aZYRmCYhUrc3y0Q",
        "types": [
            "locality",
            "political"
        ]
    }
],
"status": "OK"
}

我需要的是在每个结果[i] .types数组中搜索的函数，如果函数找到结果[i] .types [j] ==“locality”返回结果[i]。因此，如果结果[i] .types [j] ==“locality”没有发现任何巧合，则不返回任何内容。

Answer 1

<强> jsBin demo

console.log( ob.results[1].types )

将记录此结果：["locality", "political"]

并且formatted_adress内的notihng（就像你想的那样）导致该属性只包含一个字符串"Concepción, Concepción, Reg..."

获取整个"address_components"（虽然未在您的问题中说明）使用：

ob.results[1].address_components

如果您想要整个第二个对象（来自您的"results"数组），请使用：

ob.results[1]; // 0 would get the first one, so use 1

如果要匹配"locality"数组中字符串types的存在，请执行

var result; // Will hold the entire array if we found "locality" inside the `types` Array

for(var i=0; i<ob.results.length; i++){
  var loc = ob.results[i]; // Iterate all locations
  if(loc.hasOwnProperty("types") && loc.types.indexOf("locality") != -1){
     result = loc;
     break; // Finish iterating once we found the first occurrence
  }
}

console.log( result ); // The 2nd ([1]) array

<强> jsBin demo

Answer 2

使用Array.prototype.filter()缩小locality类型

的结果范围

var filtered_results = data.results.filter(function(item){
   return item.types.indexOf('locality') >-1;
});

然后从过滤后的数组中取出第一个

var addressParts
if(filtered_results.length){
   addressParts = filtered_components[0].address_components;
}

如何按子值javascript

2 个答案: