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Which comment style should I use in batch files?
... is an actual command that just does nothing. In neither case (at least on Windows 7) does the presence of redirection operators cause a problem.
However, :: is known to misbehave in blocks under certain circumstances, being parsed not as a label but as some sort of drive letter. I'm a little fuzzy...
How does `is_base_of` work?
How does the following code work?
5 Answers
5
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How does the Amazon Recommendation feature work?
...nearest neighbor methods, and neural networks. Here are some papers by the winning team:
R. Bell, Y. Koren, C. Volinsky, "The BellKor 2008 Solution to the Netflix Prize", (2008).
A. Töscher, M. Jahrer, “The BigChaos Solution to the Netflix Prize 2008", (2008).
A. Töscher, M. Jahrer, R. Legens...
Check if at least two out of three booleans are true
...;
Thread.sleep(1000);
}
}
}
This prints the following on my machine (running Ubuntu on Intel Core 2 + sun java 1.6.0_15-b03 with HotSpot Server VM (14.1-b02, mixed mode)):
First and second iterations:
a&&b || b&&c || a&&c : 1740 ms
a ? b||c : b&...
What is the difference between Python's list methods append and extend?
..., since append can be used to achieve the same outcome as extend. The following functions do the same thing:
def append(alist, iterable):
for item in iterable:
alist.append(item)
def extend(alist, iterable):
alist.extend(iterable)
So let's time them:
import timeit
>>> ...
Should I use #define, enum or const?
...disadvantages of a single approach. I work in embedded systems so the following solution is based on the fact that integer and bitwise operators are fast, low memory & low in flash usage.
Place the enum in a namespace to prevent the constants from polluting the global namespace.
namespace Reco...
What's the difference between Perl's backticks, system, and exec?
...se this tasks.
There is IPC::Open2 and IPC::Open3 and IPC::Run, as well as
Win32::Process::Create if you are on windows.
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How do I set a cookie on HttpClient's HttpRequestMessage
...oded");
httpRequestMessage.Headers.Add("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36");
httpRequestMessage.Headers.Add("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,imag...
What's the difference between “Write-Host”, “Write-Output”, or “[console]::WriteLine”?
...Job [console]::WriteLine works but Write-Host will result in an error: The Win32 internal error "The handle is invalid" 0x6 occurred while setting character attributes for the console output buffer. Don't ask me why.
– Gil Roitto
Nov 3 '17 at 12:19
...
The provider is not compatible with the version of Oracle client
....dll files were located in various directories in my oracle home. A simple windows search turned them up very quickly.
– Pandincus
Dec 28 '10 at 18:23
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