Directives are markers on a DOM element (such as an attribute, element name, comment or CSS class) that tell AngularJS’s HTML compiler ($compile) to attach a specified behavior to that DOM element or even transform the DOM element and its children.
Example:
{{ firstName + ” ” + lastName }}
In this example, the ng-app and ng-controller directives are used to define the AngularJS application and controller, respectively.
The @interface and @implementation directives are used to define a class in Objective-C.
@interface defines the class interface, which includes the class name, the superclass it inherits from, and any methods, properties, and instance variables the class has.
@implementation defines the class implementation, which includes the actual code for the methods, properties, and instance variables declared in the interface.
Example:
@interface MyClass : NSObject
@property (nonatomic, strong) NSString *name;
– (void)sayHello;
@end
@implementation MyClass
@synthesize name;
– (void)sayHello {
NSLog(@”Hello %@”, self.name);
}
@end
Vaibhav Kothia