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How to automatically generate N “distinct” colors?
...dividing the RGB cube into a lattice and then drawing points. Does anyone know any other methods? I'm ruling out defining a list and then just cycling through it. I should also say I don't generally care if they clash or don't look nice, they just have to be visually distinct.
...
Declaring and initializing variables within Java switches
...on is.)
If you comment out the value = 2; assignment, the compiler still knows which variable you're referring to, but you won't have gone through any execution path which assigns it a value, which is why you get an error as you would when you try to read any other not-definitely-assigned local var...
The remote end hung up unexpectedly while git cloning
...n effect, and in this instance, the OP Joe reports:
[clone] works fine now
Note: if something went wrong on the server side, and if the server uses Git 2.5+ (Q2 2015), the error message might be more explicit.
See "Git cloning: remote end hung up unexpectedly, tried changing postBuffer but s...
What's the difference between Ruby's dup and clone methods?
...48 (Rails cookie handling) then you can easily get an error when they unbeknownst to you they clone it and then attempt to modify the clone. duping your frozen value and passing that in allows you to at least guarantee that no one accidentally modifies your constant, without breaking Rack here.
...
How do you delete a column by name in data.table?
...hough data.table is gradually moving away from using this argument so it's now discouraged where you can avoid it; showing here so you know the option exists in case you really do need it:
# Method 5a (like Method 3)
df3[, !"foo", with=FALSE]
# Method 5b (like Method 4)
df3[, !grep("^foo$", names(...
What are the uses of the exec command in shell scripts? [closed]
...profile, the last statement says something like:
exec appln-program
so now there is no shell to go back to. Even if appln-program crashes, the end-user cannot get to a shell, because it is not there - the exec replaced it.
We want to use a different shell to the one in /etc/passwd. Stupid as ...
How to detect if a script is being sourced
...
If your Bash version knows about the BASH_SOURCE array variable, try something like:
# man bash | less -p BASH_SOURCE
#[[ ${BASH_VERSINFO[0]} -le 2 ]] && echo 'No BASH_SOURCE array variable' && exit 1
[[ "${BASH_SOURCE[0]}" != "$...
Best way to implement request throttling in ASP.NET MVC?
...an have?
null, // no dependencies
DateTime.Now.AddSeconds(Seconds), // absolute expiration
Cache.NoSlidingExpiration,
CacheItemPriority.Low,
null); // no callback
allowExecute = true;
}
if (...
Allowing Untrusted SSL Certificates with HttpClient
...
With Windows 8.1, you can now trust invalid SSL certs. You have to either use the Windows.Web.HttpClient or if you want to use the System.Net.Http.HttpClient, you can use the message handler adapter I wrote:
http://www.nuget.org/packages/WinRtHttpClie...
How to write header row with csv.DictWriter?
...f writing the header row.
Simple example of using the writeheader() method now available in 2.7 / 3.2:
from collections import OrderedDict
ordered_fieldnames = OrderedDict([('field1',None),('field2',None)])
with open(outfile,'wb') as fou:
dw = csv.DictWriter(fou, delimiter='\t', fieldnames=orde...