JSFiddle - React, Tailwind, and code Playground
by Alex
HTML
<select ng-switch-when="list" ng-model="item.value" class="ng-scope ng-pristine ng-valid">
<option value="? string:1 ?"></option>
<option value="">-- Bitte wählen --</option>
<option ng-repeat="val in item.data" value="1" ng-selected="selectedOption(val.split(':')[1], item.value)" class="ng-scope ng-binding" selected="selected">ja</option>
<option ng-repeat="val in item.data" value="0" ng-selected="selectedOption(val.split(':')[1], item.value)" class="ng-scope ng-binding">nein</option>
</select>
<hr/>
<div></div>
CSS
option{
color:red;
}
option:before{
content: '*'
}
JavaScript
$(function(){
alert( JSON.stringify( $('option:empty') ) )
});