The JSON object looks something like the following:

{"start":0,
 "stat":"ok",
 "locations":[{"name":"Pensacola, FL",
               "place_id":"qQ7Vig2bBZsZCy82",
               "woeid":2470377}],
 "count":3,
 "total":3,
 "query":"address=Pensacola"}

So you can quickly see that it’s an object, with a “locations” entry that contains an array of objects. This looks like an object that represents the search results for a location from some web service.

I will parse that complex object by creating separate variables to hold specific parts of the object, but there are simpler ways to do this. In this example, I want to get the value for the “name” key in the first item of the “locations” array.

// jsonString contains the actual JSON output from your web service
SBJSON *json = [[SBJSON alloc] init];
NSError *error = nil;
// object containing full results
NSDictionary *results = [json objectWithString:jsonString error:&error];
// array just for the "location" results
NSArray *locations = [results objectForKey:@"locations"];
// first location in your array
NSDictionary *firstLocation = [locations objectAtIndex:0];
// finally, the name key
NSString *name = [firstLocation objectForKey:@"name"];
[json release];

It seems pretty useful, and I’m already thinking about using it in a few projects in the future. You can find more details about it on the homepage.

My only concern is that in some scenarios you may want to avoid a hard dependency on Flash, but for consumer sites it seems like a safe choice.

Anyway, Drip is a memory leak detector application for Internet Explorer. It basically runs IE within the application itself, and analyzes the memory usage for any leaks. Seems really really useful, and just by playing with it for a few minutes I already found a couple of pieces of code to fix.