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Why is require_once so bad to use?
...ce to analyse the system calls that are being made.
Before opening a file from require_once the following system calls are made:
time(NULL) = 1223772434
lstat64("/home", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
lstat64("/home/fbarnes", {st_mode=S_IFDIR|0755, st_s...
setting an environment variable in virtualenv
...keep this configuration in your project directory, simply create a symlink from your project directory to $VIRTUAL_ENV/bin/postactivate.
$ rm $VIRTUAL_ENV/bin/postactivate
$ ln -s .env/postactivate $VIRTUAL_ENV/bin/postactivate
You could even automate the creation of the symlinks each time you use ...
When to use references vs. pointers
...
From C++ FAQ Lite -
Use references when you can, and pointers when you have to.
References are usually preferred over pointers whenever you don't need
"reseating". This usually means that references are most usefu...
Is there a simple, elegant way to define singletons? [duplicate]
...nly the `self` argument. Also, the decorated class cannot be
inherited from. Other than that, there are no restrictions that apply
to the decorated class.
To get the singleton instance, use the `instance` method. Trying
to use `__call__` will result in a `TypeError` being raised.
...
git merge: apply changes to code that moved to a different file
... one before the commits you want to merge; most likely, this is the commit from which you branched out to implement your changes. As user @digory doo wrote below, you can do git merge-base master local to find X.
---- X (move)-----CP----- (master)
\
`--A---B--- (local)
On this br...
When to use static classes in C# [duplicate]
...ndards, standards, standards!
Using instance methods does not inhibit you from also using static methods, and vice versa. As long as there's reasoning behind the differentiation and it's standardised. There's nothing worse than looking over a business layer sprawling with different implementation m...
Copy a variable's value into another
...f that object, then the x property of your new object is the same x object from the original:
var copy = $.extend( {}, obj );
copy.w = 321;
copy.x.y = 654;
Now your objects will look like this:
// copy looks as expected
var copy = {
w: 321,
x: {
y: 654,
z: 789
}
};
/...
Learning about LINQ [closed]
...my opinion, awesome:
https://github.com/walkhard/linq-exercises
Download from git, open in Visual Studio. Your job is to make the tests pass.
[disclosure: i learned some linq from it and I contribute to the project so yeah i think it's an awesome, fast and efficient way to learn.]
...
Creating an object: with or without `new` [duplicate]
...ray that it did not new. In fact, nothing newd the C-style string; it came from a string literal. deleteing that is an error (albeit one that will not generate a compilation error, but instead unpredictable behaviour at runtime).
Usually an object should not have the responsibility of deleteing any...
Script Tag - async & defer
...m to defer won't be any faster than putting them before </body>, but from what I've read that is incorrect. Think about it -- if you put the scripts in <head>, then they will start downloading immediately, whereas if they are right before </body> then all the other elements downloa...