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Map to String in Java
...s after all also what System.out.println(object) does under the hoods. The format for maps is described in AbstractMap#toString().
Returns a string representation of this map. The string representation consists of a list of key-value mappings in the order returned by the map's entrySet view's it...
HttpServletRequest - how to obtain the referring URL?
...nt or even removed. Thus, whatever value it returns, you should not use it for any critical business processes in the backend, but only for presentation control (e.g. hiding/showing/changing certain pure layout parts) and/or statistics.
For the interested, background about the misspelling can be fo...
Loop through an array php
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Using foreach loop without key
foreach($array as $item) {
echo $item['filename'];
echo $item['filepath'];
// to know what's in $item
echo '<pre>'; var_dump($item);
}
Using foreach loop with key
foreach($a...
Why is this F# code so slow?
...Levenshtein implementation in C# and F#. The C# version is 10 times faster for two strings of about 1500 chars. C#: 69 ms, F# 867 ms. Why? As far as I can tell, they do the exact same thing? Doesn't matter if it is a Release or a Debug build.
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What does an underscore in front of an import statement mean?
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Short answer:
It's for importing a package solely for its side-effects.
From the Go Specification:
To import a package solely for its side-effects (initialization), use the blank identifier as explicit package name:
import _ "lib/math"
In sql...
How to convert a selection to lowercase or uppercase in Sublime Text
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From the Sublime Text docs for Windows/Linux:
Keypress Command
Ctrl + K, Ctrl + U Transform to Uppercase
Ctrl + K, Ctrl + L Transform to Lowercase
and for Mac:
Keypress Command
cmd + KU Transform to Uppercase
cmd + KL Transfor...
What does “all” stand for in a makefile?
I read some tutorials concerning Makefiles but for me it is still unclear for what the target "all" stands for and what it does.
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How to specify a port number in SQL Server connection string?
... whole day trying to figure this out. Someone at Microsoft should be shot for this. Not only do they take it upon themselves to create a whole new convention for delimiting a port address (they couldn't just use a colon like the rest of the world) but they couldn't be bothered to put a test for it...
Use logging print the output of pprint
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Use pprint.pformat to get a string, and then send it to your logging framework.
from pprint import pformat
ds = [{'hello': 'there'}]
logging.debug(pformat(ds))
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RegEx: Smallest possible match or nongreedy match
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For a regular expression like .* or .+, append a question mark (.*? or .+?) to match as few characters as possible. To optionally match a section (?:blah)? but without matching unless absolutely necessary, use something like ...