自动完成搜索中的建议框未显示

Question

我想使用Photon服务创建一个自动完成的输入框。我尝试做的是创建一个返回结果的ajax请求。通过输入地址的几个字母，Photon API应该会向我显示结果，如图所示：

​

​

我所写的内容如下：

html

  <div class="frmSearch">
    <input type="text" id="search-box" placeholder="Country Name" />
    <div id="suggesstion-box"></div>
</div>

js

$("#search-box").keyup(function(){
        $.ajax({
        type: "GET",
        url: "http://photon.komoot.de/api/?q=" + $("#search-box").val(),

        beforeSend: function(){
            $("#search-box").css("background","#FFF url(LoaderIcon.gif) no-repeat 165px");
        },
        success: function(results){

       var aList = results.features;
       var aOptions = [];
       for (i=0; i < aList.length; i++) {
           optKey = aList[i].geometry.coordinates[0]+','+aList[i].geometry.coordinates[1];
           optLabel = aList[i].properties.name+', '+aList[i].properties.street+' '+aList[i].properties.housenumber+', '+
              aList[i].properties.city+', '+aList[i].properties.postcode;
           aOptions.push({
              "value": optKey,
              "label": optLabel
           });
       }

   

            $("#suggesstion-box").show();
            $("#suggesstion-box").html(aOptions);
            $("#search-box").css("background","#FFF");
        }
        });
    });

API调用运行得很好，但是我的建议框没有出现。我哪里做错了？

Answer 1

不能直接使用html()函数添加对象。您只能传递string

因此，您需要将对象数组解析为string

​

$("#search-box").keyup(function() {
  $.ajax({
    type: "GET",
    url: "https://photon.komoot.de/api/?q=" + $("#search-box").val(),

    beforeSend: function() {
      $("#search-box").css("background", "#FFF url(LoaderIcon.gif) no-repeat 165px");
    },
    success: function(results) {

      var aList = results.features;
      var aOptions = [];
      let htmlVal = '';
      for (i = 0; i < aList.length; i++) {
        optKey = aList[i].geometry.coordinates[0] + ',' + aList[i].geometry.coordinates[1];
        optLabel = aList[i].properties.name + ', ' + aList[i].properties.street + ' ' + aList[i].properties.housenumber + ', ' +
          aList[i].properties.city + ', ' + aList[i].properties.postcode;
        aOptions.push({
          "value": optKey,
          "label": optLabel
        });
        htmlVal += `${optKey} ${optLabel} <br />`; // add each value to htmlVal
      }

      $("#suggesstion-box").show();
      $("#suggesstion-box").html(htmlVal);
      $("#search-box").css("background", "#FFF");
    }
  });
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="frmSearch">
  <input type="text" id="search-box" placeholder="Country Name" />
  <div id="suggesstion-box"></div>
</div>

​