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Best way to check if a URL is valid
...mal text. The function or solution, that I'm looking for, should recognize all links formats including the ones with GET parameters.
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Django - filtering on foreign key properties
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You can add a .query.as_sql() to see what sql will actually be executed.
– fastmultiplication
Jul 17 '10 at 5:19
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Preferred way to create a Scala list
...do so with a tail-recursive function, foldLeft, or something else is not really relevant.
If you get the elements in the same order you use them, then a ListBuffer is most likely a preferable choice, if performance is critical.
But, if you are not on a critical path and the input is low enough, yo...
How can I return NULL from a generic method in C#?
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community wiki
3 revs, 3 users 50%Jon Skeet
3
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HTML5 Email Validation
...e="Submit">
</form>
And when the user press submit, it automatically shows an error message like:
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Make a borderless form movable?
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This article on CodeProject details a technique. Is basically boils down to:
public const int WM_NCLBUTTONDOWN = 0xA1;
public const int HT_CAPTION = 0x2;
[System.Runtime.InteropServices.DllImport("user32.dll")]
public static extern int SendMessage(IntPtr hWnd, int Msg, int wParam...
Test if lists share any items in python
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Short answer: use not set(a).isdisjoint(b), it's generally the fastest.
There are four common ways to test if two lists a and b share any items. The first option is to convert both to sets and check their intersection, as such:
bool(set(a) & set(b))
Because sets are stor...
How to highlight cell if value duplicate in same column for google spreadsheet?
... Assuming A1 is a criterion for the equation, doesn't this formula compare all cells in range to A1?
– mafonya
Sep 17 '15 at 10:28
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Difference between IsNullOrEmpty and IsNullOrWhiteSpace in C# [duplicate]
...efer : https://msdn.microsoft.com/en-us/library/system.char.iswhitespace(v=vs.110).aspx
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How the single threaded non blocking IO model works in Node.js
...ks.
After I read the article understanding-the-node-js-event-loop , I'm really confused about it.
It gave an example for the model:
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