Typehead.js不发送ajax请求

Question

我想在json文件中使用typeahead.js。但是，当我键入提前输入时，ajax请求就不会发送。

javascript:

var users = new Bloodhound({
  datumTokenizer: Bloodhound.tokenizers.obj.whitespace('name'),
  queryTokenizer: Bloodhound.tokenizers.whitespace,
  limit: 10,
  prefetch: {
    url: '/users.json',
    filter: function(list) {
      return $.map(list, function(user) { return { name: user }; });
    }
  }
});

users.initialize();

$('#prefetch .typeahead').typeahead(null, {
  name: 'users',
  displayKey: 'name',
  // `ttAdapter` wraps the suggestion engine in an adapter that
  // is compatible with the typeahead jQuery plugin
  source: users.ttAdapter()
});

rails控制器：

def index
    @users = User.all
    @search = User.select :name
    render json: @search
end

Answer 1

下面是正确使用的代码:在javascript中：

var users = new Bloodhound({
  datumTokenizer: Bloodhound.tokenizers.obj.whitespace('name'),
  queryTokenizer: Bloodhound.tokenizers.whitespace,
  limit: 10,
  remote: {
    url: '/users.json',
    filter: function(list) {
      return $.map(list, function(user) { return { name: user }; });
    }
  }
});