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Best Practice for Exception Handling in a Windows Forms Application?
...e really needed. The most typical example is developers using try/catch to convert string to integer instead of using ParseInt().
If you expect the caller of your code to be able to handle error conditions then create custom exceptions that detail what the un excepected situation is and provide rele...
Can I pass an array as arguments to a method with variable arguments in Java?
...Object[] { "hello", "world!"});
It's just syntactic sugar - the compiler converts the first one into the second, since the underlying method is expecting an array for the vararg parameter.
See
Varargs - J2SE 1.5 Documentation
...
How to calculate the difference between two dates using PHP?
... up to date solution see jurka's answer below
You can use strtotime() to convert two dates to unix time and then calculate the number of seconds between them. From this it's rather easy to calculate different time periods.
$date1 = "2007-03-24";
$date2 = "2009-06-26";
$diff = abs(strtotime($date...
How to have favicon / icon set when bookmarklet dragged to toolbar?
...for your bookmarklet.
Open Bookmarks Manager, click Organize dropdown, and select Export, save your bookmarks as html file.
Open that html file in text editor.
Find the bookmark you just created, lets say its Gmail bookmark, you should have an html code for it, that looks like this:
<DT><...
What are the best PHP input sanitizing functions?
... much more thorough job of both stripping out all HTML and also allowing a selective whitelist of tags and attributes through.
Modern PHP versions ship with the filter extension, which provides a comprehensive way to sanitize user input.
Validation
Making sure that submitted data is free from unexpe...
In C#, why is String a reference type that behaves like a value type?
...rence, rather than primitive, type. Plus, if string were a value type then converting it to object would require it to be boxed, a needless inefficiency).
– Qwertie
Jun 25 '10 at 15:50
...
What is the difference between “px”, “dip”, “dp” and “sp”?
...
I will elaborate more on how exactly does dp convert to px:
If running on an mdpi device, a 150 x 150 px image will take up 150 * 150 dp of screen space.
If running on an hdpi device, a 150 x 150 px image will take up 100 * 100 dp of screen space.
If running on an xhd...
What is std::move(), and when should it be used?
...ically a function - I would say it isn't really a function. It's sort of a converter between ways the compiler considers an expression's value.
2. "What does it do?"
The first thing to note is that std::move() doesn't actually move anything. It changes an expression from being an lvalue (such as a n...
Append values to query string
...h can cause issues with internationalization as special characters will be converted to their unicode equivalents in the query.ToString() method.
– tezromania
Nov 11 '14 at 17:05
...
How to parse an RSS feed using JavaScript?
...t()) you'll want to inject to display your data.
Injecting the content
Select the container element that you want on the page and append your document fragments to it, and simply use innerHTML to replace its content entirely.
Something like:
$('#rss-viewer').append(aDocumentFragmentEntry);
o...