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NullPointerException in Java with no StackTrace
...expect. The logger API actually takes Object as the first argument, not a string - and then it calls toString() on the argument. So instead of getting the nice pretty stack trace, it just prints out the toString - which in the case of NPE is pretty useless.
Perhaps this is what you're experiencin...
Why does find -exec mv {} ./target/ + not work?
...ts to the command until an argument consisting of `;' is encountered. The string `{}' is replaced by the current file name being processed everywhere it occurs in the arguments to the command, not just in arguments where it is alone, as in some versions of find. Both of these constructions mi...
how to break the _.each function in underscore.js
...k from the each method—it emulates the native forEach method's behavior, and the native forEach doesn't provide to escape the loop (other than throwing an exception).
However, all hope is not lost! You can use the Array.every method. :)
From that link:
every executes the provided callback fu...
Is there a concurrent List in Java's JDK?
...s, you can loop over the contents using the enhanced for syntax:
Queue<String> globalQueue = new ConcurrentLinkedQueue<String>();
//Multiple threads can safely call globalQueue.add()...
for (String href : globalQueue) {
//do something with href
}
...
How do I unbind “hover” in jQuery?
...'mouseenter mouseleave');
As of jQuery 1.7, you are also able use $.on() and $.off() for event binding, so to unbind the hover event, you would use the simpler and tidier:
$('#myElement').off('hover');
The pseudo-event-name "hover" is used as a shorthand for "mouseenter mouseleave" but was hand...
Accessing Google Spreadsheets with C# using Google Data API
...orksheetRel, null);
WorksheetQuery query = new WorksheetQuery(link.HRef.ToString());
WorksheetFeed feed = service.Query(query);
foreach (WorksheetEntry worksheet in feed.Entries)
{
Console.WriteLine(worksheet.Title.Text);
}
And get a cell based feed:
AtomLink cellFeedLink = worksheetentry.L...
How to draw circle in html page?
How do you draw a circle using HTML5 and CSS3?
16 Answers
16
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How do you make a deep copy of an object?
...factory method that in turn deep copies the child object. Immutables (e.g. Strings) do not need to be copied. As an aside, you should favor immutability for this reason.
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PDO MySQL: Use PDO::ATTR_EMULATE_PREPARES or not?
...scape query parameter values, it will just be done in the PDO library with strings instead of on the MySQL server using the binary protocol. In other words, the same PDO code will be equally vulnerable (or not-vulnerable) to injection attacks regardless of your EMULATE_PREPARES setting. The only dif...
Why is extending native objects a bad practice?
...es, for example what happens if some other code also tries to add it's own stringify() method with different behaviour? It's really not something you should do in everyday programming... not if all you want to do is save a few characters of code here and there. Better to define your own class or fun...