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jQuery.ajax handling continue responses: “success:” vs “.done”?
...ere else in your application. So let's say you want to make this ajax call from a few different places. Rather than passing in your success function as an option to the function that makes this ajax call, you can just have the function return $.ajax itself and bind your callbacks with done, fail, th...
When to use “ON UPDATE CASCADE”
...Zed made a good point, that if you use a natural key (e.g. a regular field from your database table) as your primary key, then there might be certain situations where you need to update your primary keys. Another recent example would be the ISBN (International Standard Book Numbers) which changed fr...
What are the uses of the exec command in shell scripts? [closed]
...ernel, there are a family of them based on execve, which is usually called from C.
exec replaces the current program in the current process, without forking a new process. It is not something you would use in every script you write, but it comes in handy on occasion. Here are some scenarios I hav...
What does it mean to “program to an interface”?
...hat can each be annoying in their own way. And they do not need to derive from the same base class and share common inherent characteristics -- they simply need to satisfy the contract of IPest -- that contract is simple. You just have to BeAnnoying. In this regard, we can model the following:
c...
What's the difference between “declare class” and “interface” in TypeScript
... files and both are included via script tags in a webpage). If you inherit from a class using extends (regardless of whether the base type was a declare class or a regular class) the compiler is going to generate all the code to hook up the prototype chain and forwarding constructors and what not.
...
How to sort an array of associative arrays by value of a given key in PHP?
... you're looking for is array_multisort().
Here's an example taken straight from the manual and adapted to your case:
$price = array();
foreach ($inventory as $key => $row)
{
$price[$key] = $row['price'];
}
array_multisort($price, SORT_DESC, $inventory);
As of PHP 5.5.0 you can use array_colu...
Given an RGB value, how do I create a tint (or shade)?
...nction is roughly equivalent to raising each sRGB color component (ranging from 0 through 1) to a power of 2.2. (Note that "linear RGB" is not an RGB color space.)
See also Violet Giraffe's comment about "gamma correction".
...
Initialize class fields in constructor or at declaration?
...
Really? I swear I grabbed this info from Richter's CLR via C# (2nd edition I think) and the gist of it was that this was syntactic sugar (I may have read it wrong?) and the CLR just jammed the variables into the constructor. But you're stating that this isn't t...
How to secure database passwords in PHP?
...prefer using a database account that is only allowed to acces the database from the web server. And then I don't bother encrypting the configuration, I just store it outside the web root.
– gnud
Apr 25 '09 at 8:01
...
decorators in the python standard lib (@deprecated specifically)
...
Here's some snippet, modified from those cited by Leandro:
import warnings
import functools
def deprecated(func):
"""This is a decorator which can be used to mark functions
as deprecated. It will result in a warning being emitted
when the fu...