Question

我想循环services_raw_nl下的所有值，并获取属于thoses值的名称和数字，例如内部餐饮和9 和现场音乐和6

我想使用for-in循环，但我有两个问题：

问题是services_raw_nl的名称也可能是services_raw_en（取决于用户选择的语言）。
我不确定如何访问属性及其值。基本上我只想通过索引获取services_raw_nl下的属性的名称和值。

我想将它作为JSFiddle提供，但不知道如何在那里提供JSON数据，因为这项服务尚未生效，我无法从JSFiddle中调用它。

{
  "responseHeader":{
    "status":0,
    "QTime":1,
    "params":{
      "facet":"true",
      "sort":"membervalue desc",
      "fl":"id,city,thumb",
      "facet.mincount":"1",
      "indent":"on",
      "start":"0",
      "q":["*:*",
        "*:*"],
      "facet.field":["country_raw_nl",
        "services_raw_nl",
        "city"],
      "wt":"json",
      "fq":"country_nl:=australie",
      "rows":"12"}},
  "response":{"numFound":10,"start":0,"docs":[
      {
        "id":"842",
        "city":"whitsundays",
        "thumb":"735_739_CEREMONY-PAVILLION-2.jpg"}]
  },
  "facet_counts":{
    "facet_queries":{},
    "facet_fields":{
      "country_raw_nl":[
        "Australie",10],
      "services_raw_nl":[
        "In-house Catering",9,
        "Live music",6],
      "partylocation":[
        "true",8,
        "false",2],
      "hasphoto":[
        "true",9,
        "false",1],
      "hasvideo":[
        "false",10],
      "rating":[
        "0.0",10],
      "rating_rounded":[
        "0.0",10],
    "facet_dates":{},
    "facet_ranges":{}}}

这是我正在尝试的循环：

for (var service in response.facet_counts.facet_fields.services_raw_nl) {
    console.log(response.facet_counts.facet_fields.services_raw_nl[service].???);
}

Answer 1

您可以将service_raw_nl/en缓存到变量，并使用简单的for循环：

var lang = 'nl', // or 'en', this you probably have stored somewhere in your preceding code?
    services_raw = response.facet_counts.facet_fields['services_raw_' + lang],
    n;
for (n = 0; n < services_raw.length; n++) {
    console.log(services_raw[n]);
}

修改

此函数返回一个包含所需值的对象。

var lang = 'nl'; function getServices (response, lang) { var services_raw = response.facet_counts.facet_fields['services_raw_' + lang], n, temp = {}; for (n = 0; n < services_raw.length; n+= 2) { temp[services_raw[n]] = services_raw[n + 1]; } return temp; } console.log(getServices(response, lang));

A live demo at jsFiddle

编辑II

从services_raw_nl的值创建一些HTML的简单方法是这样的：

var lang = 'nl', services_raw = response.facet_counts.facet_fields['services_raw_' + lang], n, outer, inner; for (n = 0; n < services_raw.length; n += 2) { outer = document.createElement('span'); outer.appendChild(document.createTextNode(services_raw[n])); inner = outer.appendChild(document.createElement('span')); inner.appendChild(document.createTextNode(services_raw[n + 1])); what_ever_element.appendChild(outer); }

带有动态属性名称的JavaScript for-in循环

1 个答案: