###Hello world on JavaScriptBridge

This is the most simple way.

@implementation JSBAppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

{

JSContext *context = [JSBScriptingSupport globalContext];

[context evaluateScript:

@"var window = UIWindow.new();"

@"window.frame = UIScreen.mainScreen().bounds;"

@"window.backgroundColor = UIColor.whiteColor();"

@""

@"var navigationController = UINavigationController.new();"

@"var viewController = UIViewController.new();"

@"viewController.navigationItem.title = 'Make UI with JavaScript';"

@""

@"var view = UIView.new();"

@"view.backgroundColor = UIColor.redColor();"

@"view.frame = {x: 20, y: 80, width: 280, height: 80};"

@""

@"var label = UILabel.new();"

@"label.backgroundColor = UIColor.blueColor();"

@"label.textColor = UIColor.whiteColor();"

@"label.text = 'Hello World.';"

@"label.font = UIFont.boldSystemFontOfSize(24);"

@"label.sizeToFit();"

@""

@"var frame = label.frame;"

@"frame.x = 10;"

@"frame.y = 10;"

@"label.frame = frame;"

@""

@"view.addSubview(label);"

@"viewController.view.addSubview(view);"

@""

@"navigationController.viewControllers = [viewController];"

@""

@"window.rootViewController = navigationController;"

@"window.makeKeyAndVisible();"

];

return YES;

}