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Automatic Retina images for web sites
... for you depends on various factors, such as how your website is designed, what kind of technology your typical visitors are using etc. Note that retina displays are not limited to the Macbook Pro Retina and the coming iMacs, but also include mobile devices, which may have their own needs.
The prob...
How to specify a port number in SQL Server connection string?
...or it in SQL Server Management Studio so you'd get some kind of hint about what's going on.
– PrgTrdr
Sep 3 '13 at 22:03
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Using python's eval() vs. ast.literal_eval()?
... the user input a plain dictionary, use ast.literal_eval(). It safely does what you want and nothing more.
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Best algorithm for detecting cycles in a directed graph [closed]
What is the most efficient algorithm for detecting all cycles within a directed graph?
14 Answers
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C# string reference type?
...tring s2 = s1;
s1 = "def";
Console.WriteLine(s2);
// Output: abc
This is what happened:
Line 1 and 2: s1 and s2 variables reference to the same "abc" string object.
Line 3: Because strings are immutable, so the "abc" string object do not modify itself (to "def"), but a new "def" string object ...
Using module 'subprocess' with timeout
....6 the API offers the ability to wait for threads and
terminate processes, what about running the process in a separate
thread?
import subprocess, threading
class Command(object):
def __init__(self, cmd):
self.cmd = cmd
self.process = None
def run(self, timeout):
d...
Python: Using .format() on a Unicode-escaped string
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what a simple thing.. what a terrible headache i got until i found this bit of enlightenment..
– Iosu S.
Jun 16 '17 at 11:54
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In MySQL, can I copy one row to insert into the same table?
...tly cleaner create pattern. I think the OP asked for a better approach to what they were already using, not a clean up of their existing syntax. Don't really understand all the upvotes for this.
– Sepster
Oct 3 '12 at 13:18
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Optimise PostgreSQL for fast testing
...Tune shared_buffers to fit your workload. This is OS-dependent, depends on what else is going on with your machine, and requires some trial and error. The defaults are extremely conservative. You may need to increase the OS's maximum shared memory limit if you increase shared_buffers on PostgreSQL 9...
Why use a prime number in hashCode?
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For what it's worth, Effective Java 2nd Edition hand-waives around the mathematics issue and just say that the reason to choose 31 is:
Because it's an odd prime, and it's "traditional" to use primes
It's also one less than a pow...