AngularJS API
AngularJS API
API 意为 Application Programming Interface（应用程序编程接口）。
AngularJS 全局 API
AngularJS 全局 API 用于执行常见任务的 JavaScript 函数集合，如：
- 比较对象
- 迭代对象
- 转换对象
全局 API 函数使用 angular 对象进行访问。
以下列出了一些通用的 API 函数：
| API | 描述 |
|---|---|
| angular.lowercase() | 转换字符串为小写 |
| angular.uppercase() | 转换字符串为大写 |
| angular.isString() | 判断给定的对象是否为字符串，如果是返回 true。 |
| angular.isNumber() | 判断给定的对象是否为数字，如果是返回 true。 |
angular.lowercase()
实例
<div ng-app="myApp" ng-controller="myCtrl">
<p>{{ x1 }}</p>
<p>{{ x2 }}</p>
</div>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
$scope.x1 = "JOHN";
$scope.x2 = angular.lowercase($scope.x1);
});
</script>
<p>{{ x1 }}</p>
<p>{{ x2 }}</p>
</div>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
$scope.x1 = "JOHN";
$scope.x2 = angular.lowercase($scope.x1);
});
</script>
angular.uppercase()
实例
<div ng-app="myApp" ng-controller="myCtrl">
<p>{{ x1 }}</p>
<p>{{ x2 }}</p>
</div>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
$scope.x1 = "John";
$scope.x2 = angular.uppercase($scope.x1);
});
</script>
<p>{{ x1 }}</p>
<p>{{ x2 }}</p>
</div>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
$scope.x1 = "John";
$scope.x2 = angular.uppercase($scope.x1);
});
</script>
angular.isString()
实例
<div ng-app="myApp" ng-controller="myCtrl">
<p>{{ x1 }}</p>
<p>{{ x2 }}</p>
</div>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
$scope.x1 = "JOHN";
$scope.x2 = angular.isString($scope.x1);
});
</script>
<p>{{ x1 }}</p>
<p>{{ x2 }}</p>
</div>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
$scope.x1 = "JOHN";
$scope.x2 = angular.isString($scope.x1);
});
</script>
angular.isNumber()
实例
<div ng-app="myApp" ng-controller="myCtrl">
<p>{{ x1 }}</p>
<p>{{ x2 }}</p>
</div>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
$scope.x1 = "JOHN";
$scope.x2 = angular.isNumber($scope.x1);
});
</script>
<p>{{ x1 }}</p>
<p>{{ x2 }}</p>
</div>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
$scope.x1 = "JOHN";
$scope.x2 = angular.isNumber($scope.x1);
});
</script>
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