javascript - 将 Google Places API 限制在特定国家/地区

Question

我试图将自动完成限制在特定国家/地区，即美国。我怎样才能做到这一点？通过将变量选项作为参数传递给初始化函数，我在下面尝试了以下操作:

   <script>
    var autocomplete = {};
    var autocompletesWraps = ['test', 'test2'];

    var test_form = { street_number: 'short_name', route: 'long_name', locality: 'long_name', administrative_area_level_1: 'short_name', country: 'long_name', postal_code: 'short_name' };
    var test2_form = { street_number: 'short_name', route: 'long_name', locality: 'long_name', administrative_area_level_1: 'short_name', country: 'long_name', postal_code: 'short_name' };

    function initialize() {

        var options = {
            types: ['(cities)'],
            componentRestrictions: {country: "us"}
        };

        $.each(autocompletesWraps, function(index, name) {

            if($('#'+name).length == 0) {
                return;
            }

            autocomplete[name] = new google.maps.places.Autocomplete($('#'+name+' .autocomplete')[0], { types: ['geocode'] }, options);

            google.maps.event.addListener(autocomplete[name], 'place_changed', function() {

                var place = autocomplete[name].getPlace();
                var form = eval(name+'_form');

                for (var component in form) {
                    $('#'+name+' .'+component).val('');
                    $('#'+name+' .'+component).attr('disabled', false);
                }

                for (var i = 0; i < place.address_components.length; i++) {
                    var addressType = place.address_components[i].types[0];
                    if (typeof form[addressType] !== 'undefined') {
                        var val = place.address_components[i][form[addressType]];
                        $('#'+name+' .'+addressType).val(val);
                    }
                }
            });
        });
    }
</script>

Answer 1

您没有正确传递选项。 Autocomplete 接受两个参数，而您传递了三个。

具体来说，在这一行中:

autocomplete[name] = new google.maps.places.Autocomplete(
    $('#'+name+' .autocomplete')[0], { types: ['geocode'] }, options);

您的 options 参数未使用，因为您已将 { types: ['geocode'] } 作为选项传递。

所以删除额外的参数:

var options = {
    types: ['geocode'],  // or '(cities)' if that's what you want?
    componentRestrictions: {country: "us"}
};
autocomplete[name] = new google.maps.places.Autocomplete(
    $('#'+name+' .autocomplete')[0], options);