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What is the best regular expression to check if a string is a valid URL?
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What platform? If using .NET, use System.Uri.TryCreate, not a regex.
For example:
static bool IsValidUrl(string urlString)
{
Uri uri;
return Uri.TryCreate(urlString, UriKind.Absolute, out uri)
&& (uri.Scheme == Uri.UriScheme...
How does a “stack overflow” occur and how do you prevent it?
...p you.
Some options in this case:
Breadth-first search
Tail recursion, .Net-specific great blog post (sorry, 32-bit .Net)
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calculating the difference in months between two dates
In C#/.NET TimeSpan has TotalDays , TotalMinutes , etc. but I can't figure out a formula for total months difference. Variable days per month and leap years keep throwing me off. How can I get TotalMonths ?
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2 column div layout: right column with fixed width, left fluid
...width: auto;
overflow: hidden;
}
Example here: http://jsfiddle.net/jackJoe/fxWg7/
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Installing Latest version of git in ubuntu
... In sudo apt-get update its "Unable to connect to ppa.launchpad.net:http:" but I can go to ppa.launchpad.net/git-core/ppa/ubuntu using my browser. I dont have any clue on what to do with this network error.
– Arjun Krishna P R
Oct 1 '13 at 9:14
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Preserving order with LINQ
...d, but not re-ordered.
Distinct
Except
Intersect
OfType
Prepend (new in .net 4.7.1)
Skip
SkipWhile
Take
TakeWhile
Where
Zip (new in .net 4)
Destroys Order - we don't know what order to expect results in.
ToDictionary
ToLookup
Redefines Order Explicitly - use these to change the order of the ...
How to increase the gap between text and underlining in CSS
...How about adding the padding-bottom to the container div as well? jsfiddle.net/dYfjc/1
– chelmertz
Nov 17 '12 at 15:32
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What is the difference between a map and a dictionary?
... for the same thing:
"Map" is used by Java, C++
"Dictionary" is used by .Net, Python
"Associative array" is used by PHP
"Map" is the correct mathematical term, but it is avoided because it has a separate meaning in functional programming.
Some languages use still other terms ("Object" in Javasc...
How to send an email using PHP?
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mail($to, $subject, $message, $headers);
?>
Reference:
http://php.net/manual/en/function.mail.php
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Why does integer division in C# return an integer and not a float?
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In VB.Net .Net architects made another decision: / - always a float division, \ - integer division, so it is kind of inconsistent, except if you consider C++ legacy;
– BanditoBunny
Jun 1 '12 a...