javascript - 使用 'remote' 时，Typeahead 和 Bloodhound 会显示不相关的建议

Question

当使用带有远程选项的 Typeahead/Bloodhound 时，当本地/预取结果低于“限制”(5) 时，显示的建议与输入无关。看起来它只是从结果设置的顶部开始显示，最多 5 个。

图:“爱”是预期结果，其他一切无关:

我的代码:

    var keywords = [
 {"value": "Ambient"}, {"value": "Blues"},{"value":  "Cinematic"},{"value":  "Classical"},{"value": "Country"},
 {"value": "Electronic"},{"value": "Holiday"},{"value": "Jazz"},{"value": "Lounge"},{"value": "Folk"},
  {"value": "Hip Hop"},{"value": "Indie"},{"value": "Pop"},{"value": "Post Rock"},{"value": "Rock"},{"value": "Singer-Songwriter"},{"value": "Soul"},
  {"value": "World"},{"value": "Happy"},{"value": "Sad"},{"value": "Love"},{"value": "Angry"},
  {"value":"Joy"},{"value": "Delight"},{"value": "Light"},{"value": "Dark"},{"value": "Religious"},{"value": "Driving"},
  {"value":"Excited"},{"value": "Yummy"},{"value": "Delicious"},{"value": "Fun"},{"value": "Rage"},
  {"value":"Hard"},{"value": "Soft"}
  ];


// Instantiate the Bloodhound suggestion engine
var keywordsEngine = new Bloodhound({
    datumTokenizer: function (datum) {
        return Bloodhound.tokenizers.whitespace(datum.value);
    },
    queryTokenizer: Bloodhound.tokenizers.whitespace,
    local: keywords,
    remote: {
        url: '/stub/keywords.json',
        filter: function (keywords) {
            // Map the remote source JSON array to a JavaScript object array
            return $.map(keywords, function (keyword) {
                return {
                    value: keyword.value
                };
            });
        }
    },
    prefetch: {
        url: '/stub/keywords.json',
        filter: function (keywords) {
            // Map the remote source JSON array to a JavaScript object array
            return $.map(keywords, function (keyword) {
                return {
                    value: keyword.value
                };
            });
        }
    }
});

// kicks off the loading/processing of `local` and `prefetch`
keywordsEngine.initialize();

$('#keyword-search-input').typeahead({
  hint: true,
  highlight: true,
  minLength: 1
},
{
  name: 'keyword',
  displayKey: 'value',
  // `ttAdapter` wraps the suggestion engine in an adapter that
  // is compatible with the typeahead jQuery plugin
  source: keywordsEngine.ttAdapter()
});

Answer 1

根据 Github Issues for Typeahead.js 上的这个帖子，经过进一步研究，我认为我需要手动过滤远程建议:

“所以我的想法是，从远程返回的数据应该已经被远程过滤了，所以不会对其进行进一步的过滤。”

https://github.com/twitter/typeahead.js/issues/148