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Is there a decorator to simply cache function return values?
...periodically called with the same arguments.
Example of an LRU cache for computing Fibonacci numbers:
@lru_cache(maxsize=None)
def fib(n):
if n < 2:
return n
return fib(n-1) + fib(n-2)
>>> print([fib(n) for n in range(16)])
[0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 14...
Resizing an image in an HTML5 canvas
...e you good enough resampling quality? You implement them yourself then! Oh come on, we're entering the new age of Web 3.0, HTML5 compliant browsers, super optimized JIT javascript compilers, multi-core(†) machines, with tons of memory, what are you afraid of? Hey, there's the word java in javascri...
Copy/duplicate database without using mysqldump
.... With that in mind, here is a simple way to duplicate a database from the command line of a windows server:
Create the target database using MySQLAdmin or your preferred method. In this example, db2 is the target database, where the source database db1 will be copied.
Execute the following state...
Capture HTML Canvas as gif/jpg/png/pdf?
... var img = canvas.toDataURL("image/jpeg"); am getting the background as complete black. How to rectify that
– gauti
Dec 23 '13 at 14:55
190
...
Could not load file or assembly 'Newtonsoft.Json, Version=4.5.0.0, Culture=neutral, PublicKeyToken=3
...ckage –reinstall Newtonsoft.Json.
UPDATE
I originally posted this as a comment but as @OwenBlacker suggested I'll just put it here:
If you still get an error after doing this, then what worked for me eventually is that I deleted Json.Net's <dependentAssembly> section from my .config file....
C++ auto keyword. Why is it magic?
... to initialize it.
This means that most of the type deduction mechanics a compiler needs to implement auto were already present and used for templates on any compiler that even sort of attempted to implement C++98/03. As such, adding support for auto was apparently fairly easy for essentially all t...
JUnit test with dynamic number of tests
... @hstoerr, Looks like this will be in the next release of JUnit :-) github.com/KentBeck/junit/commit/…
– rescdsk
Apr 13 '12 at 15:32
...
jQuery scroll() detect when user stops scrolling
...ch.
It is important to check the github-repo for updates!
https://github.com/yckart/jquery.unevent.js
;(function ($) {
var on = $.fn.on, timer;
$.fn.on = function () {
var args = Array.apply(null, arguments);
var last = args[args.length - 1];
if (isNaN(last) || (l...
PHP convert XML to JSON
...
This solution is not flawless. It completely discards XML attributes. So <person my-attribute='name'>John</person> is interpreted as <person>John</person>.
– Jake Wilson
Jan 26 '15 at 19:57
...
How to iterate over the keys and values with ng-repeat in AngularJS?
...
@IsabelHM For many reasons, a lot of us recommend against iterating over objects in an ngRepeat. In fact, I once heard a core team member regret ever implementing the ability to do so! It's usually better to transform the object in the controller to an array; this ma...