在某些条件下将值附加到对象？

Question

我只是在条件满足时才尝试附加值（距离！=“关闭”）。

这是我尝试的但我不能让它起作用？

var params = {
    q: pizza,
    result_type: "mixed",
    include_entities: "true",
    if(distance != "off") {
        geocode: geolocation,
        }
    rpp: 15,
    page: 1
};

怎么做？

Answer 1

Tou有两个不同含义的选项。

选项1：

var params = {
    q: pizza,
    result_type: "mixed",
    include_entities: "true",
    geocode: (distance != "off") ? geolocation:null,
    rpp: 15,
    page: 1
};

或选项2：

var params = {
    q: pizza,
    result_type: "mixed",
    include_entities: "true",
    rpp: 15,
    page: 1
};

if(distance != "off") {
    params.geocode: geolocation;
}

选项1意味着定义了地理编码，您需要检查null或您认为默认值应该是什么。选项2意味着地理编码未定义，这是您建议您对原始代码示例所做的。

Answer 2

var params = {
    q: pizza,
    result_type: "mixed",
    include_entities: "true",
    rpp: 15,
    page: 1
};

if(distance != "off") {
    params.geocode = geolocation;
}