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node.js remove file
...
What if I check it exists, but it's blocked by another process - or, I check it exists, and it's fine, but then another process randomly blocks it before I'm able to delete. How can I block straight after checking? then wouldnt I not be able to delete as its bl...
Adding a simple UIAlertView
... handler:nil]; //You can use a block here to handle a press on this button
[alertController addAction:actionOk];
[self presentViewController:alertController animated:YES completion:nil];
Swift 3 / 4 / 5:
let alertController = UIAlertController(title: "T...
Can Objective-C switch on NSString?
...
You could set up a dictionary of blocks, like this:
NSString *lookup = @"Hearts"; // The value you want to switch on
typedef void (^CaseBlock)();
// Squint and this looks like a proper switch!
NSDictionary *d = @{
@"Diamonds":
^{
NSLog(@...
Catch multiple exceptions at once?
.... Write a common ErrorHandler function and, like, call it from each catch block.
If you ask me, the second example (with the if and is keywords) is both significantly less readable, and simultaneously significantly more error-prone during the maintenance phase of your project.
The maintenance pha...
What is the difference between and ?
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<section> marks up a section, <div> marks up a generic block with no associated semantics.
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Change default text in input type=“file”?
... Bin</title>
</head>
<body>
<button style="display:block;width:120px; height:30px;" onclick="document.getElementById('getFile').click()">Your text here</button>
<input type='file' id="getFile" style="display:none">
</body>
</html>
...
How do I get the current date in JavaScript?
... moment as if it were a language. Mine here uses the same common format as PHP: date.
Quick Links
Date.format.min.js 5.08 KB
dateFormat.min.js 4.16 KB
Flavor 1 new Date().format(String)
My Personal Fav. I know the taboo but works great on the Date Object. Just be aware of any other mods yo...
Explaining Python's '__enter__' and '__exit__'
...e which needs some 'cleandown' code executed (think of it as a try-finally block). Some more explanation here.
A useful example could be a database connection object (which then automagically closes the connection once the corresponding 'with'-statement goes out of scope):
class DatabaseConnection...
Prevent contenteditable adding on ENTER - Chrome
...ange:
div{
background: skyblue;
padding:10px;
display: inline-block;
}
pre{
white-space: pre-wrap;
background: #EEE;
}
http://jsfiddle.net/ayiem999/HW43Q/
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erb, haml or slim: which one do you suggest? And why? [closed]
...or tags makes nesting tags harder as erb only returns the last line in the block. so you have to append to a string and then return that.
HAML
Pros
more concise. no closing tags, fits in smaller screens
visually cleaner structure
has built in helpers (haml_concat, haml_capture) to utilize haml...