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Is there a way to perform “if” in python's lambda
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The syntax you're looking for:
lambda x: True if x % 2 == 0 else False
But you can't use print or raise in a lambda.
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Create subdomains on the fly with .htaccess (PHP)
...DNS server *.website.com
Then in your vhost container you will need to specify the wildcard as well *.website.com - This is done in the ServerAlias DOCs
Then extract and verify the subdomain in PHP and display the appropriate data
The long version
1. Create a wildcard DNS entry
In your DNS setti...
How to validate GUID is a GUID
How to determine if a string contains a GUID vs just a string of numbers.
9 Answers
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What is the “continue” keyword and how does it work in Java?
I saw this keyword for the first time and I was wondering if someone could explain to me what it does.
13 Answers
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.NET unique object identifier
Is there a way of getting a unique identifier of an instance?
11 Answers
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Fastest way to count exact number of rows in a very large table?
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Nope, COUNT(*) = COUNT(key). This is just wrong. If there is no NOT NULL constraint - then they can be not equal (in results as well as in execution plan).
– zerkms
May 20 '11 at 8:28
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Determine if an HTML element's content overflows
Can I use JavaScript to check (irrespective of scrollbars) if an HTML element has overflowed its content? For example, a long div with small, fixed size, the overflow property set to visible, and no scrollbars on the element.
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How to delete last character in a string in C#?
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Worth noting that this is helpful if you don't want to have an & sign at the end of the string.
– Ammar
Oct 1 '12 at 20:49
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Expression Versus Statement
...hat still survives is C. The designers of C realized that no harm was done if you were allowed to evaluate an expression and throw away the result. In C, every syntactic expression can be a made into a statement just by tacking a semicolon along the end:
1 + 2 / x;
is a totally legit statement ev...
How can I use optional parameters in a T-SQL stored procedure?
... creating a stored procedure to do a search through a table. I have many different search fields, all of which are optional. Is there a way to create a stored procedure that will handle this? Let's say I have a table with four fields: ID, FirstName, LastName and Title. I could do something like...