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HTML5 Canvas Resize (Downscale) Image High Quality?
... - fast image resize/resample using Hermite filter. 1 cpu version!
*
* @param {HtmlElement} canvas
* @param {int} width
* @param {int} height
* @param {boolean} resize_canvas if true, canvas will be resized. Optional.
*/
function resample_single(canvas, width, height, resize_canvas) {
var...
How do I get the current absolute URL in Ruby on Rails?
...ApplicationController to return the current URL and allow merging in other parameters
# https://x.com/y/1?page=1
# + current_url( :page => 3 )
# = https://x.com/y/1?page=3
def current_url(overwrite={})
url_for :only_path => false, :params => params.merge(overwrite)
end
Example Usage...
C++ preprocessor __VA_ARGS__ number of arguments
...
I usually use this macro to find a number of params:
#define NUMARGS(...) (sizeof((int[]){__VA_ARGS__})/sizeof(int))
Full example:
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#define NUMARGS(...) (sizeof((int[]){__VA_ARGS__})/size...
How to pass object with NSNotificationCenter
... @Kairos because it isn't designed to use like this. the object param in postNotificationName should meaning the one which send this notification.
– xi.lin
Jul 9 '15 at 3:49
...
Execute raw SQL using Doctrine 2
...color
$sql = "SELECT name FROM user WHERE favorite_color = :color";
//set parameters
//you may set as many parameters as you have on your query
$params['color'] = blue;
//create the prepared statement, by getting the doctrine connection
$stmt = $this->entityManager->getConnection()->pre...
Fastest way to flatten / un-flatten nested JSON objects
..., {f: 1}]}}]})
* // return {a: 1}
* flatten({a: 1, b: [], c: {}})
*
* @param obj item to be flattened
* @param {Array.string} [prefix=[]] chain of prefix joined with a dot and prepended to key
* @param {Object} [current={}] result of flatten during the recursion
*
* @see https://docs.mongodb...
How to get the return value from a thread in python?
...g this can be done with a list of threads. futures = [executor.submit(foo, param) for param in param_list] The order will be maintained, and exiting the with will allow result collection. [f.result() for f in futures]
– jayreed1
Jun 4 at 21:29...
Can a C# lambda expression have more than one statement?
...nt calculation = (i*x);
(string info, int result) InternalTuppleMethod(param1, param2)
{
var sum = (calculation + 5);
return ("The calculation is", sum);
}
}
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“Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP
...r to »hide« undefined variable/index messages.
$var = @($_GET["optional_param"]);
This is usually discouraged. Newcomers tend to way overuse it.
It's very inappropriate for code deep within the application logic (ignoring undeclared variables where you shouldn't), e.g. for function parameters,...
Get color value programmatically when it's a reference (theme)
...es multiple attributes and return an array of color integers. :)
/**
* @param context Pass the activity context, not the application context
* @param attrFields The attribute references to be resolved
* @return int array of color values
*/
@ColorInt
static int[] getColorsFromAttrs(Context c...