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What's a good way to extend Error in JavaScript?
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HTML - how can I show tooltip ONLY when ellipsis is activated
... Thanks, works like a charm! However if you want to make it more efficient you might consider replacing bind() with on() like so: $(document).on('mouseenter', '.mightOverflow', function() { ... });
– Ziad
Jan 29 '13 at 11:48
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How can I check for NaN values?
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Control cannot fall through from one case label
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How do I return the response from an asynchronous call?
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→ For a more general explanation of async behaviour with different examples, please see Why is my variable unaltered after I modify it inside of a function? - Asynchronous code reference
→ If you already understand the problem, ski...
HTML: Include, or exclude, optional closing tags?
...ptional tags (unless I have a very good reason not to) because it lends to more readable and updateable code.
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Reference - What does this error mean in PHP?
...n PHP starts parsing won't be able to submit any header.
If your file has more than one <?php ... ?> code block in it, you should not have any spaces in between them. (Note: You might have multiple blocks if you had code that was automatically constructed)
Also make sure you don't have any B...
Core Data: Quickest way to delete all instances of an entity
...tor executeRequest:delete withContext:myContext error:&deleteError];
More information about batch deletions can be found in the "What's New in Core Data" session from WWDC 2015 (starting at ~14:10).
iOS 8 and earlier:
Fetch 'em all and delete 'em all:
NSFetchRequest *allCars = [[NSFetchRequ...
String is immutable. What exactly is the meaning? [duplicate]
...nowledge" and assigns it a reference str. Simple enough? Lets perform some more functions:
String s = str; // assigns a new reference to the same string "knowledge"
Lets see how the below statement works:
str = str.concat(" base");
This appends a string " base" to str. But wait, how is ...
Java - Including variables within strings?
... I know this is a matter of opinion, but I don't see how format is more attractive than a simple String concatenation expression. Where format comes into its own is when you need to do padding, number formatting, etcetera.
– Stephen C
Mar 10 '12 at 4:1...