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PostgreSQL database default location on Linux
...ostgresql/9.4/bin/postgres -D /var/lib/postgresql/9.4/main -c config_file=/etc/postgresql/9.4/main/postgresql.conf
so apparently /var/lib/postgresql/9.4/main.
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How to delete migration files in Rails 3
...ll environments it already ran (production, development, testing, staging, etc) before deleting its file. That's also why I wrote that it's safer to just create another migration to revert that old one, once it's already ran on production.
– Fábio Batista
Apr ...
What are the best practices for catching and re-throwing exceptions?
...lass ComponentInitException extends Exception {
// public constructors etc as in Exception
}
class Component {
public function __construct() {
try {
$connect = new CONNECT($db, $user, $password, $driver, $host);
}
catch (Exception $e) {
throw ...
How to run test methods in specific order in JUnit4?
...to maintain, will break the ability to run tests individually (obviously), etc.
That being said, if you really want to go in this direction, consider using TestNG since it supports running tests methods in any arbitrary order natively (and things like specifying that methods depends on groups of m...
How do I get the filepath for a class in Python?
...ern is:
/project
/appname
models.py
views.py
/templates
index.html
etc.
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What's the yield keyword in JavaScript?
...e readable, easy to delete, and no need to fiddle with indents, functions, etc.
An interesting observation is that in this example, yield is actually just a keyword you can put before a function with a callback.
function* main() {
console.log(yield function(cb) { cb(null, "Hello World") })
}
W...
How to sort my paws?
... the order of: Front Left, Hind Right, Front Right, Hind Left, Front Left, etc. The pattern may start with either the front left or front right paw.
If this were always the case, we could simply sort the impacts by initial contact time and use a modulo 4 to group them by paw.
However, even whe...
is there a css hack for safari only NOT chrome?
... by posting a comment about it, Post Your Browser and Device (MacBook/IPad/etc... with both browser and OS version numbers!)
Claiming none of these work is not accurate (and actually not even possible.) Many of these are not really 'hacks' but code built into versions of Safari by Apple. More info i...
java.net.URLEncoder.encode(String) is deprecated, what should I use instead?
...roduced these constants: StandardCharsets.US_ASCII, StandardCharsets.UTF_8 etc. Unfortunately, URLEncoder.encode does not accept a Charset... (but many other moethods do).
– sleske
May 29 '13 at 8:34
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How to print an exception in Python?
... instead of STDOUT, which allows for the proper output parsing/redirection/etc. I understand that the question was strictly about 'printing an error', but it seems important to point out the best practice here rather than leave out this detail that could lead to non-standard code for anyone who does...