This code snippet demonstrates how to achieve this functionality using pure JavaScript:
document.getElementById("mySelect").selectedIndex = "0"
<select class="selectpicker" id="mySelect">
<option>English </option>
<option>Español </option>
</select>
If you want to accomplish the same task but in AngularJS, you can use the following controller setup:
app.controller("BodyController",function($scope){
/****************AngularJS code goes here*/
});
To include the ng-model attribute within the select tag, assign the value of the corresponding variable in the scope (associated with the scope configured in the controller). Refer to the sample code below - remember that value attributes have been included for the options. Additionally, as mentioned by tymeJV, consider using ngOptions which is commonly utilized in Angular applications to populate the option elements inside the select tag (refer to the second example below).
angular.module('app',[])
.controller("BodyController",function($scope){
//set the model value to 'en', so the select list will select the option with value=='en'
$scope.lang = 'en';
});<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="app" ng-controller="BodyController">
<select class="selectpicker" id="mySelect" ng-model="lang">
<option value="en">English </option>
<option value="es">Español </option>
</select>
</div>Utilizing ngOptions:
angular.module('app',[])
.controller("BodyController",function($scope){
//set the model value to 'en', so the select list will select the option with value=='en'
$scope.lang = {name: 'English', id: 'en'};
$scope.langs = [
{name: 'English', id: 'en'},
{name: 'Español', id: 'es'}
];
});<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="app" ng-controller="BodyController">
<select class="selectpicker" id="mySelect" ng-model="lang" ng-options="lang.name for lang in langs track by lang.id">
</select>
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