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Listening for variable changes in JavaScript
...arget[key] = value;
return true;
}
});
targetProxy.hello_world = "test"; // console: 'hello_world set to test'
The only drawbacks of the Proxy object are:
The Proxy object is not available in older browsers (such as IE11) and the polyfill cannot fully replicate Proxy functionality.
Pro...
How and why do I set up a C# build machine? [closed]
... I've proposed setting up a build machine which will do nightly builds and tests of the project, because I understand that this is a Good Thing. Trouble is, we don't have a whole lot of budget here, so I have to justify the expense to the powers that be. So I want to know:
...
各编程语言读写文件汇总 - C/C++ - 清泛网 - 专注C/C++及内核技术
...
// 写文件
using (StreamWriter sw = new StreamWriter(@"test.txt"))
{
sw.WriteLine("file content...");
sw.Flush();
sw.Close();
}
// 读文件
using (TextReader reader = new StreamReader("test.txt"))
{
while (reader.P...
Passing command line arguments to R CMD BATCH
...command line
$ R CMD BATCH --no-save --no-restore '--args a=1 b=c(2,5,6)' test.R test.out &
Test.R
##First read in the arguments listed at the command line
args=(commandArgs(TRUE))
##args is now a list of character vectors
## First check to see if arguments are passed.
## Then cycle through...
How to mock an import
Module A includes import B at its top. However under test conditions I'd like to mock B in A (mock A.B ) and completely refrain from importing B .
...
Is there a foreach in MATLAB? If so, how does it behave if the underlying data changes?
...ing iterations, a WHILE loop may be more appropriate --- you'll be able to test the loop condition at every iteration, and set the value of the loop variable(s) as you wish:
n = 10;
f = n;
while n > 1
n = n-1;
f = f*n;
end
disp(['n! = ' num2str(f)])
Btw, the for-each loop in Java (and ...
Why does one use dependency injection?
...configuration changes after compile-time, and it is a great thing for unit testing (as it makes it very easy to inject stubs and / or mocks).
In practice, there are things you can not do without a service locator (e.g., if you do not know in advance how many instances you do need of a specific inte...
How to detect internet speed in JavaScript?
...e file size.
Example can be found here: Calculate speed using javascript
Test case applying the fix suggested there:
//JUST AN EXAMPLE, PLEASE USE YOUR OWN PICTURE!
var imageAddr = "http://www.kenrockwell.com/contax/images/g2/examples/31120037-5mb.jpg";
var downloadSize = 4995374; //bytes
...
Swapping column values in MySQL
...hem is NULL. Use method #3 that doesn't have this limitation.
UPDATE swap_test SET x=y, y=@temp WHERE (@temp:=x) IS NOT NULL;
This method was offered by Dipin in, yet again, the comments of http://beerpla.net/2009/02/17/swapping-column-values-in-mysql/. I think it’s the most elegant and clean sol...
How to Get the Current URL Inside @if Statement (Blade) in Laravel 4?
...->getName() to check your route name.
Example: routes.php
Route::get('test', ['as'=>'testing', function() {
return View::make('test');
}]);
View:
@if(Route::current()->getName() == 'testing')
Hello This is testing
@endif
...