javascript - 如何限制从键盘中选择的提前输入选项？

Question

我的输入如下，

<input
  typeahead-template-url="app/templates/type-a-head-item.html"
  type="text"
  ng-model="selectedDisease"
  search-head="powerSearch"
  typeahead-loading="loadingLocations"
  typeahead-wait-ms="200"
  typeahead-min-length="0"
  placeholder="Disease, Procedure or Medicine"
  typeahead="match as match._source.name for match in getDiseases($viewValue)"
  typeahead-focus-first="false"
  typeahead-editable="false" 
  typeahead-loading="loadingDiseases"
  class="form-control input-lg ng-pristine ng-untouched ng-invalid ng-invalid-required magnifyInput Bcolor"
  typeahead-on-select="searchDoctors()"
  aria-autocomplete="list"
  aria-expanded="false"
  aria-owns="typeahead-12-6891">

我只想从下拉列表中选择选项，而不是通过键盘输入来选择它。我尝试了很多使用 jQuery 的方法，但没有成功。有人可以建议我帮忙吗。谢谢。

$(document).keypress(function(e) {
    if(e.which == 13) {
        alert('You pressed enter!');
    }
});

Answer 1

添加此属性应该可以实现您想要的行为:

typeahead-should-select="false"

来自docs :

typeahead-should-select($event) (Default: null)

A callback executed when a keyup event that might trigger a selection occurs. Selection will only occur if this function returns true.