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What is the difference between Caching and Memoization?
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112
Memoization is a specific form of caching that involves caching the return value of a function...
What is the difference between Class and Klass in ruby?
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191
class is a keyword used to define a new class. Since it's a reserved keyword, you're not able ...
Nginx serves .php files as downloads, instead of executing them
...munity/tutorials/how-to-install-linux-nginx-mysql-php-lemp-stack-on-ubuntu-14-04 but when I try to run some .php file it's just downloading it...
for example... http://5.101.99.123/info.php it's working but... If I go to the main http://5.101.99.123 it's downloading my index.php :/
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Postgres: “ERROR: cached plan must not change result type”
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191
I figured out what was causing this error.
My application opened a database connection and pr...
How to create duplicate allowed attributes
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185
Stick a AttributeUsage attribute onto your Attribute class (yep, that's mouthful) and set Allo...
Understanding Linux /proc/id/maps
...tch to kernel mode. Here's a good article about it: "What is linux-gate.so.1?"
You might notice a lot of anonymous regions. These are usually created by mmap but are not attached to any file. They are used for a lot of miscellaneous things like shared memory or buffers not allocated on the heap. F...
curl_exec() always returns false
..._URL, 'http://example.com/');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt(/* ... */);
$content = curl_exec($ch);
// Check the return value of curl_exec(), too
if ($content === false) {
throw new Exception(curl_error($ch), curl_errno($ch));
}
/* Pro...
Numpy first occurrence of value greater than existing value
I have a 1D array in numpy and I want to find the position of the index where a value exceeds the value in numpy array.
7 A...
What is the difference between an annotated and unannotated tag?
...oesn't. An annotated tag has a message that can be displayed with git-show(1), while a tag without annotations is just a named pointer to a commit.
More About Lightweight Tags
According to the documentation: "To create a lightweight tag, don’t supply any of the -a, -s, or -m options, just provid...
Change File Extension Using C#
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221
There is: Path.ChangeExtension method. E.g.:
var result = Path.ChangeExtension(myffile, ".jpg")...