NSMutableArray from NSArray
ios, nsarray, nsmutablearray, objective-c
Solution
You can invoke `mutableCopy` on an `NSArray` object to return to you an `NSMutableArray`.
Note that the callee will obtain ownership of this object since the method name contains "copy".
(Apple's memory management guide states that a method name containing the words "alloc", "new" or "copy" should by convention return an object which you own, and as such must relinquish ownership of at some point.)
Problem
i have the following code and i want to use NSMutable arrays instead of NSArray could you tell me how to load the NSMutable array, as the current method does not work. ``` -(void) whatever{ NSData *htmlData = [[NSString stringWithContentsOfURL:[NSURL URLWithString: @"http://www.objectgraph.com/contact.html"]] dataUsingEncoding:NSUTF8StringEncoding]; TFHpple *xpathParser = [[TFHpple alloc] initWithHTMLData:htmlData]; NSArray *titles = [xpathParser search:@"//h3"]; // get the page title - this is xpath notation TFHppleElement *title = [titles objectAtIndex:0]; NSString *myTitles = [title content]; NSArray *articles = [xpathParser search:@"//h4"]; // get the page article - this is xpath notation TFHppleElement *article = [articles objectAtIndex:0]; NSString *myArtical = [article content]; ``` i have tried : ``` NSMutableArray *titles = [xpathParser search:@"//h3"]; ``` but it does load the values?