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C# List of objects, how do I get the sum of a property
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Here is example code you could run to make such test:
var f = 10000000;
var p = new int[f];
for(int i = 0; i < f; ++i)
{
p[i] = i % 2;
}
var time = DateTime.Now;
p.Sum();
Console.WriteLine(DateTime.Now - time);
int x = 0;
time = DateTime.Now;
foreach(var item in...
xUnit : Assert two List are equal?
I'm new to TDD and xUnit so I want to test my method that looks something like:
4 Answers
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How to check if a given directory exists in Ruby
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You could use Kernel#test:
test ?d, 'some directory'
it gets it's origins from https://ss64.com/bash/test.html
you will notice bash test has this flag -d to test if a directory exists
-d file True if file is a Directory. [[ -d demofile ]]...
Using Chrome's Element Inspector in Print Preview Mode?
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I can confirm this so I made this the approved answer. I'm not sure why they keep insisting on moving it every few releases.
– David Stinemetze
Apr 30 '15 at 17:11
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scheduleAtFixedRate vs scheduleWithFixedDelay
...hing, and your task gets put in a queue of things to do. (NOTE you need to confirm this by either looking at said queue or looking at what the executor threads are doing). How you control this depends on what type of executor you have. You may want to make a separate 1-thread executor for this parti...
How to remove EXIF data without recompressing the JPEG?
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Thanks! I wanted to confirm that exiv2 would show GPS location info so that I could see that it was gone after. The default option for print is "summary" which excludes GPS info. To see all info you have to use: exiv2 -pa pr image.jpg
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ssh: connect to host github.com port 22: Connection timed out
... ssh.github.com
Port 443
Then, run the command ssh -T git@github.com to confirm if the issue is fixed.
According to this
Sometimes, firewalls refuse to allow SSH connections entirely. If using HTTPS cloning with credential caching is not an option, you can attempt to clone using an SSH conne...
How to attach my repo to heroku app
...u choose one for you.
Let say your heroku app name is new-app-xxxxx, so to test on adding a file in to it you may try the following command:
git clone https://git.heroku.com/<new-app-xxxxx>.git
cd <new-app-xxxxx>
echo "my test file" > test.txt
git add .
git commit . -m "my test on co...
What does the star operator mean, in a function call?
...ou want to 'store' a function call.
For example, suppose I have some unit tests for a function 'add':
def add(a, b): return a + b
tests = { (1,4):5, (0, 0):0, (-1, 3):3 }
for test, result in tests.items():
print 'test: adding', test, '==', result, '---', add(*test) == result
There is no other...
Repeatedly run a shell command until it fails?
I've written a fuzzy test that fails unreliably. I've added some debug code, but now I want to run the test until it fails so I can gather the debug output.
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