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NSInvocation for Dummies?
...ting an NSInvocation object to say: "Hey, if you want to undo what I just did, send this message to that object, with these arguments". You give the NSInvocation object to the NSUndoManager, and it adds that object to an array of undoable actions. If the user calls "Undo", NSUndoManager simply looks...
.htaccess rewrite to redirect root URL to subdirectory
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Just recently I spent a lot of time debugging why this didn't work on a site in Ubuntu Apache 2.4.7. Rewrite debugging showed the rule being hit and generating an INTERNAL REDIRECT. Then it seemed to just park that and look for an index page. Turns out that if mod_dir is enabled A...
Set cursor position on contentEditable
...e with the standards-based browsers, but will probably fail in IE. I'm providing it as a starting point. IE doesn't support DOM Range.
var editable = document.getElementById('editable'),
selection, range;
// Populates selection and range variables
var captureSelection = function(e) {
// Do...
MySQL vs MongoDB 1000 reads
...sts in MySQL with about 20 million records indexed only on a field called 'id'.
7 Answers
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change cursor to finger pointer
...actually the default behavior for links. You must have either somehow overridden it elsewhere in your CSS, or there's no href attribute in there (it's missing from your example).
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What is the shortcut to Auto import all in Android Studio?
...re any way of auto importing (like in Eclipse Shift + Ctrl + O ) in Android Studio ?
11 Answers
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Sort a Custom Class List
...) => a.date.CompareTo(b.date)); Would this create issues when paging grids and these two happened to fall on different pages?
– TheEmirOfGroofunkistan
May 18 '12 at 13:41
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Convert JSON String to Pretty Print JSON output using Jackson
...apper.writerWithDefaultPrettyPrinter().writeValueAsString(json);
this avoids your having to define actual POJO to map data to.
Or you can use JsonNode (JSON Tree) as well.
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Appending to an object
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This answer expects you to know the id of the alert to be added. Well, if you already know that, then you can simply follow the original object format and do: alerts[3] = { app: 'hello3', message: 'message 3' }. With this you can access a message by id: alerts[...
How can I load storyboard programmatically from class?
...ur storyboard go to the Attributes inspector and set the view controller's Identifier. You can then present that view controller using the following code.
UIStoryboard *sb = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
UIViewController *vc = [sb instantiateViewControllerWithIdent...