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How to make a great R reproducible example
...he original ones. (eg op <- par(mfrow=c(1,2)) ...some code... par(op) )
test run your code in a new, empty R session to make sure the code is runnable. People should be able to just copy-paste your data and your code in the console and get exactly the same as you have.
Give extra information
I...
How can I use Google's Roboto font on a website?
... Cool thing, they provide an @import for LESS files too! However, testing w/o internet connection OR Google connection issues (e.g.: China) = NO Fonts... I also noticed that there is no Roboto Black (Roboto Bk) font-family: they actually only use 3 font families (Roboto, Roboto Condensed an...
How to get the IP address of the docker host from inside a docker container
... the parent machine:
sudo ifconfig lo0 alias 192.168.46.49
You can then test the connection from within the docker container with telnet. In my case I wanted to connect to a remote xdebug server:
telnet 192.168.46.49 9000
Now when traffic comes into your Mac addressed for 192.168.46.49 (and al...
How can I remove an SSH key?
...
Copy the SSH key → GitLab Account → Setting → SSH Key → Add key
Test again from the terminal → ssh -T git@gitlab.com
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CSRF protection with CORS Origin header vs. CSRF token
...
I've just tested Firefox 47 and it does not send an origin header for a cross-origin form post (a common way of attacking REST services that don't enable CORS for XHR), so I don't think an origin header check would be effective if the ...
Delete all Duplicate Rows except for One in MySQL? [duplicate]
...n your connection for a large table.
NB - You need to do this first on a test copy of your table!
When I did it, I found that unless I also included AND n1.id <> n2.id, it deleted every row in the table.
If you want to keep the row with the lowest id value:
DELETE n1 FROM names n1, nam...
Why does the C# compiler not fault code where a static method calls an instance method?
...SameName(object o) { }
void SameName(string s) { }
public static void Test()
{
SameName("Hi mom");
}
}
This will not compile because the best overload is the one taking a string. But hey, that's an instance method, so compiler complains (instead of taking the second-best overload).
A...
What happens if you call erase() on a map element while iterating from begin to end?
In the following code I loop through a map and test if an element needs to be erased. Is it safe to erase the element and keep iterating or do I need to collect the keys in another container and do a second loop to call the erase()?
...
What are “decorators” and how are they used?
...ot configurable / with options.
It can also provide mock up instances for testing purpose, for example $http.
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What is the significance of initializing direction arrays below with given values when developing ch
...starting at north - then ^4 gets you the opposite direction.)
Now you can test all directions from a given point by looping over your di and dj arrays, instead of needing to write out each direction on its own line (for eight in total!) (Just don't forget to do bounds checking :) )
diK and djK for...