这是我的JSFiddle
我的 html 和 js 在 JSFiddle 中运行良好。但是它在我的rails应用程序的控制台中给出了错误
Uncaught TypeError: Cannot set property 'selected' of undefined admin.js:1000
Chosen.result_select admin.js:1000
Chosen.search_results_mouseup admin.js:1000
(anonymous function) admin.js:1000
x.event.dispatch admin.js:6
v.handle
HTML
<div class="col-xs-3 equ">
<select class = "car-select col-xs-10 col-sm-10 col-sm-offset-1 center boxalign" id = "brand">
<option value="brand">Brand Select</option>
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
<option value="mercedes1">Mercedes</option>
<option value="audi">Audi</option>
<option value="volvo2">Volvo</option>
<option value="saab">Saab</option>
<option value="mercedes">Mercedes</option>
<option value="audi">Audi</option>
</select>
</div>
<div class="col-xs-3 equ">
<select class = "car-select col-xs-10 col-sm-10 col-sm-offset-1 center boxalign" id = "car">
<option value="brand" class = "mercedes">Brand Select</option>
<option value="volvo" class = "mercedes">Volvo</option>
<option value="saab" class = "volvo">Saab</option>
<option value="mercedes" class = "volvo">Mercedes</option>
<option value="audi" class = "volvo">Audi</option>
<option value="volvo" class = "mercedes">Volvo</option>
<option value="saab" class = "mercedes">Saab</option>
<option value="mercedes" class = "mercedes">Mercedes</option>
<option value="audi" class = "mercedes">Audi</option>
</select>
</div>
JavaScript
$(".car-select").chosen({disable_search_threshold: 10});
$(".car-select-deselect").chosen({allow_single_deselect:true});
$(function() {
$("#car").chained("#brand");
$("#brand").trigger("liszt:updated");
$("#brand").bind("change", function(){
$("#car").trigger("liszt:updated")
});
});