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Regex to validate date format dd/mm/yyyy
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Edit February 14th 2019: I've removed a comma that was in the regex which allowed dates like 29-0,-11
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What specific productivity gains do Vim/Emacs provide over GUI text editors?
...few keypresses that someone would've otherwise spent ten minutes doing manually.
Multiple copy/paste registers. When you only have one, you end up going through strange contortions to avoid clobbering the clipboard. You shouldn't have to.
Vim's undo/redo system is unbeatable. Type something, undo...
Removing viewcontrollers from navigation stack
...e this code and enjoy:
NSMutableArray *navigationArray = [[NSMutableArray alloc] initWithArray: self.navigationController.viewControllers];
// [navigationArray removeAllObjects]; // This is just for remove all view controller from navigation stack.
[navigationArray removeObjectAtIndex: 2]; // ...
PHP Regex to check date is in YYYY-MM-DD format
...ing to be more fuss -- and February 29 cannot be validated with a regex at all.
The drawback of this approach is that you have to be very careful to reject all possible "bad" inputs while not emitting a notice under any circumstances. Here's how:
explode is limited to return 3 tokens (so that if ...
How to enable cross-origin resource sharing (CORS) in the express.js framework on node.js
...tatic files from a public directory. I'm using the express.js and am not really sure how to allow cross-domain scripting ( Access-Control-Allow-Origin: * ).
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Remove blank lines with grep
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Try the following:
grep -v -e '^$' foo.txt
The -e option allows regex patterns for matching.
The single quotes around ^$ makes it work for Cshell. Other shells will be happy with either single or double quotes.
UPDATE: This works for me for a file with blank lines or "all white ...
Why does Python pep-8 strongly recommend spaces over tabs for indentation?
...andard library in the main Python distribution.
The intention is to make all code that goes in the official python distribution consistently formatted (I hope we can agree that this is universally a Good Thing™).
Since the decision between spaces and tabs for an individual programmer is a) real...
Javascript web app and Java server, build all in Maven or use Grunt for web app?
...'t great and writing your own plugins can be a little tricky. When I originally wrote this post JAWR was in the middle of a 4 year hiatus but is now back under active development as of Jan 2014. If you choose to investigate Java Tools this is worth investigation.
Node Based Tooling (integrated wit...
How do I remedy “The breakpoint will not currently be hit. No symbols have been loaded for this docu
...ugging, as soon as you've arrived at a breakpoint or used Debug > Break All, use Debug > Windows > Modules. You'll see a list of all the assemblies that are loaded into the process. Locate the one you want to get debug info for. Right-click it and select Symbol Load Information. You'll ...
Disable/turn off inherited CSS3 transitions
...out transitions.
Edited to note that @Frédéric Hamidi's answer, using all (for Opera, at least) is far more concise than listing out each individual property-name that you don't want to have transition.
Updated JS Fiddle demo, showing the use of all in Opera: -o-transition: all 0 none, followi...