javascript - 如何在ng-repeat下拉输入框中添加占位符？

Question

我正在使用 ng-repeat 实现一个下拉菜单。我想在输入框中添加占位符，因为第一次它是空白的(没有选择下拉选项)。所以我想设置默认占位符。我不想留空下拉输入框。

var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
    $scope.names = ["Emil", "Tobias", "Linus"];
});

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>

<div ng-app="myApp" ng-controller="myCtrl">

<select ng-model="selectedName" ng-options="x for x in names">
</select>

</div>

Answer 1

添加一个选项

 <select ng-model="selectedName" ng-options="x for x in names">
      <option disabled selected value>Please Select</option>
    </select>