selector

I am having problem understanding part of the function of "selectors", as described in Apple's guide. I've bolded the parts where I am getting confused: In Objective-C, selector has two meanings. It can be used to refer simply to the name of a method when it’s used in a source-code message to an object. It also, though, refers to the unique identifier that replaces the name when the source code is compiled. Compiled selectors are of type SEL. All methods with the same name have the same selector. You can use a selector to invoke a method on an object—this provides the basis for the

I'm trying to do an asynchronous request with ASIHTTPRequest, but have some problem getting notified when the request is done. -(void)doDownload{ NSURL *url = [NSURL URLWithString:@"http://www.someurl.com/?"]; ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url]; [request setPostValue:@"someValue" forKey:@"someField"]; [request setRequestMethod:@"POST"]; [request setDelegate:self]; [request setDidFinishSelector:@selector(requestFinished)]; [request startAsynchronous]; } - (void)requestFinished:(ASIHTTPRequest *)request { // Use when fetching text data NSString *responseString

I was wondering if it were possible to, instead of selecting an element from the DOM via a jQuery selector, if I can create one instead. For example: $.create('#hello').insertAfter('#test'); would generate the following: <div id="test">This element already existed in the DOM.</div> <div id="hello"></div> Or, better yet, for more complex operations: $.create('#test.a.b'); for: <div id="test" class="a b"></div> Obviously, more complex operations like :selected or :nth-child or :not() and all of those need not be implemented. Is anyone aware of a solution? Thanks. To create <div id="hello"></div>

Here's a snippet: NSArray *a = [@[@"a", @"b", @"c"] sortedArrayUsingSelector:@selector(compare:)]; XCode (5.0) is giving me the following warning: Creating selector for nonexistent method 'compare:' How do I eliminate these warnings? This warning is relevant for you and can be disabled in the build settings of your project. Set the value to NO and the warning is disabled. -Wselector Warn if multiple methods of different types for the same selector are found during compilation. The check is performed on the list of methods in the final stage of compilation. Additionally, a check is performed

I have created an OSX application in Swift and embedded a WebView in it using Xcode 7. I have a file selector on the web page loaded by the WebView which asks the user to browse for a particular file from the user's computer. The problem I am facing is that nothing happens when the user clicks on the browse button. The same file selector control is working fine if i open the same web page in Safari. I am relatively new in swift, so help in this case would be appreciated. Here is my viewDidLoad function: func viewDidLoad() { super.viewDidLoad() let url=NSURL(string: "http://video.online-convert

I need a way for jQuery to return all elements that have the css font-family:AvantGardeITCbyBT-Bold, sans-serif; applied to them. I'm thinking the only way of doing this is looping through all elements and checking if this css is applied to it. Seems a slow way of doing it? Is there a way of doing this via a jQuery Selector? jAndy well, you can extend the jQuery selectors with $(document).ready(function(){ $.extend($.expr[':'], { AvantGardel: function(elem){ var $e = $(elem); return( typeof $e.css('font-family') !== 'undefined' && $e.css('font-family') === 'AvantGardeITCbyBT-Bold' ); },