我正在使用Google Maps自动完成功能,并且正在检索像这样的字段中的每个对象:
$("#usp-custom-21").val(arrAddress.filter(x => x.types.includes("route"))[0].long_name);
$("#usp-custom-22").val(arrAddress.filter(x => x.types.includes("street_number"))[0].long_name);
$("#usp-custom-23").val(arrAddress.filter(x => x.types.includes("locality"))[0].long_name);
$("#usp-custom-8").attr("value", arrAddress.filter(x => x.types.includes("country"))[0].long_name);
$("#usp-custom-25").val(arrAddress.filter(x => x.types.includes("postal_code"))[0].long_name);
但是确实确实发生了,有时我们没有某些或所有这些字段,并且会出现此错误:
未捕获的TypeError:无法读取未定义的属性'long_name'
我正在尝试通过检查这些字段是否存在来进行条件检查,我尝试同时检查undefined
或只是检查其中是否存在:
if(arrAddress.filter(x => x.types.includes("route"))[0] != "undefined") {
$("#usp-custom-21").val(arrAddress.filter(x => x.types.includes("route"))[0].long_name);
}
if(arrAddress.filter(x => x.types.includes("street_number"))[0].long_name){
$("#usp-custom-22").val(arrAddress.filter(x => x.types.includes("street_number"))[0].long_name);
}
但我仍然得到:
未捕获的TypeError:无法读取未定义的属性'long_name'
它指的是string long_name
内的if
完整代码:
autocomplete.addListener('place_changed', function() {
var place = autocomplete.getPlace();
if (!place.geometry) {
return;
}
if (place.geometry.viewport) {
map.fitBounds(place.geometry.viewport);
} else {
map.setCenter(place.geometry.location);
}
marker.setPosition(place.geometry.location);
currentLatitude = place.geometry.location.lat();
currentLongitude = place.geometry.location.lng();
var arrAddress = place.address_components;
var Newlat = map.getCenter().lat();
var NewLong = map.getCenter().lng();
$("#usp-custom-19").val(parseInt(Newlat));
$("#usp-custom-20").val(parseInt(NewLong));
if(arrAddress.filter(x => x.types.includes("route"))[0] != "undefined") {
$("#usp-custom-21").val(arrAddress.filter(x => x.types.includes("route"))[0].long_name);
}
if(arrAddress.filter(x => x.types.includes("street_number"))[0].long_name){
$("#usp-custom-22").val(arrAddress.filter(x => x.types.includes("street_number"))[0].long_name);
}
if(arrAddress.filter(x => x.types.includes("locality"))[0].long_name) {
$("#usp-custom-23").val(arrAddress.filter(x => x.types.includes("locality"))[0].long_name);
}
if(arrAddress.filter(x => x.types.includes("country"))[0].long_name) {
$("#usp-custom-8").val(arrAddress.filter(x => x.types.includes("country"))[0].long_name);
}
if(arrAddress.filter(x => x.types.includes("postal_code"))[0].long_name) {
$("#usp-custom-25").val(arrAddress.filter(x => x.types.includes("postal_code"))[0].long_name);
}
if(place.formatted_address) {
$("#usp-custom-60").val(place.formatted_address);
}
$("#usp-custom-90").val(Newlat+","+NewLong);
console.log(place.formatted_address);
});
答案 0 :(得分:2)
尝试一下:
if(arrAddress.filter(x => x.types.includes("route"))[0] != undefined) {
$("#usp-custom-21").val(arrAddress.filter(x => x.types.includes("route"))[0].long_name);
}
if(arrAddress.filter(x => x.types.includes("street_number"))[0] != undefined){
$("#usp-custom-22").val(arrAddress.filter(x => x.types.includes("street_number"))[0].long_name);
}
答案 1 :(得分:0)
您尝试过吗?
if(arrAddress.filter(x => x.types.includes("route"))[0].long_name != "undefined") {
$("#usp-custom-21").val(arrAddress.filter(x => x.types.includes("route"))[0].long_name);
}
您可能还需要检查NaN或null类型。使用typeof找出失败的类型:
console.log(typeof x.types.includes("route"))[0])
或
console.log(typeof x.types.includes("route"))[0].long_name)