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What's the difference between console.dir and console.log?
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Using two values for one switch case statement
...ogram does something depending on the text entered by the user. My code looks like:
11 Answers
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Mapping two integers to one, in a unique and deterministic way
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You're looking for a bijective NxN -> N mapping. These are used for e.g. dovetailing. Have a look at this PDF for an introduction to so-called pairing functions. Wikipedia introduces a specific pairing function, namely the Cantor pa...
What exactly are unmanaged resources?
I want to know about unmanaged resources.
Can anyone please give me a basic idea?
7 Answers
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Are foreign keys really necessary in a database design?
As far as I know, foreign keys (FK) are used to aid the programmer to manipulate data in the correct way. Suppose a programmer is actually doing this in the right manner already, then do we really need the concept of foreign keys?
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Ruby function to remove all white spaces?
What is the Ruby function to remove all white spaces? I'm looking for something kind of like PHP's trim() ?
23 Answers
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How can I use a file in a command and redirect output to the same file without truncating it?
Basically I want to take as input text from a file, remove a line from that file, and send the output back to the same file. Something along these lines if that makes it any clearer.
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What is tail call optimization?
...Tail-call optimization is where you are able to avoid allocating a new stack frame for a function because the calling function will simply return the value that it gets from the called function. The most common use is tail-recursion, where a recursive function written to take advantage of tail-call ...
Capitalize first letter. MySQL
Does any one know the equivalent to this TSQL in MySQL parlance?
13 Answers
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Set cURL to use local virtual hosts
....com:80:127.0.0.1' http://yada.com/something
What's the difference, you ask?
Among others, this works with HTTPS. Assuming your local server has a certificate for yada.com, the first example above will fail because the yada.com certificate doesn't match the 127.0.0.1 hostname in the URL.
The sec...