Rough console.log functionality from within a WebView

API.js

console = {
    log: function(msg) {
        if (typeof msg !== 'string') {
            msg = JSON.stringify(msg);
        }
        if (msg) {
            _logger.consoleLog_(msg);
        }
    }
};

ConsoleLogger.m

@implementation ConsoleLogger

- (void)consoleLog:(NSString *)logString {
    NSLog(@"%@", logString);
}

@end

ScriptingEngine.m

@interface ScriptingEngine ()

@property (retain) ConsoleLogger *logger;

@end

@implementation ScriptingEngine

- (void)webView:(WebView *)sender didFinishLoadForFrame:(WebFrame *)frame {
    if (frame == [frame findFrameNamed:@"_top"]) {		

        // Initialisation

        logger = [[ConsoleLogger alloc] init];
        [[self.webview windowScriptObject] setValue:logger forKey:@"_logger"];
    
        NSString *apiScript = [[NSString alloc] initWithContentsOfFile:@"API.js" encoding:NSUTF8StringEncoding error:NULL];
        [[self.webview windowScriptObject] evaluateWebScript:apiScript];

        // more initialisation

    }
}

@end