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Fastest way to convert string to integer in PHP
...fail cast: 7.87444186211
This was a test that ran each scenario 10,000,000 times. :-)
Co-ercion is 0 + "123"
Casting is (integer)"123"
I think Co-ercion is a tiny bit faster. Oh, and trying 0 + array('123') is a fatal error in PHP. You might want your code to check the type of the supplie...
How do I increase the scrollback buffer in a running screen session?
...
Press Ctrl-a then : and then type
scrollback 10000
to get a 10000 line buffer, for example.
You can also set the default number of scrollback lines by adding
defscrollback 10000
to your ~/.screenrc file.
To scroll (if your terminal doesn't allow you to by default)...
Difference between map and collect in Ruby?
...lace under ruby-doc.org:
http://www.ruby-doc.org/core/classes/Array.html#M000249
ary.collect {|item| block } → new_ary
ary.map {|item| block } → new_ary
ary.collect → an_enumerator
ary.map → an_enumerator
Invokes block once for each element of self.
Creates a new arr...
IPC performance: Named Pipe vs Socket
...ubuntu 4.4.0 x86_64 i7-6700K 4.00GHz)
Message: 128 bytes
Messages count: 1000000
Pipe benchmark:
Message size: 128
Message count: 1000000
Total duration: 27367.454 ms
Average duration: 27.319 us
Minimum duration: 5.888 us
Maximum duration: 15763.712 us
Standard deviation: 26...
Text-align class for inside a table
... <tbody>
<tr>
<td class="price-value">$1,000,000.00</td>
</tr>
</tbody>
</table>
And just apply the text-align: left or text-align: right declarations to the price-value and price-label classes (or whatever classes work for you)...
Deleting lines from one file which are in another file
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This worked for me, as my files were sorted and had 250,000+ lines in one of them, only 28,000 in the other. Thanks!
– Winter
May 26 '14 at 22:22
1
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How to store a dataframe using Pandas
...HDF5 storage format
In their experiment, they serialize a DataFrame of 1,000,000 rows with the two columns tested separately: one with text data, the other with numbers. Their disclaimer says:
You should not trust that what follows generalizes to your data. You should look at your own data and...
How to make execution pause, sleep, wait for X seconds in R?
...le
}
testit(3.7)
Yielding
> testit(3.7)
user system elapsed
0.000 0.000 3.704
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Try-catch speeding up my code?
...whole loop:
var stopwatch = Stopwatch.StartNew();
for (int i = 1; i < 100000000; i++)
{
Fibo(100);
}
stopwatch.Stop();
Console.WriteLine("Elapsed time: {0}", stopwatch.Elapsed);
That way you're not at the mercy of tiny timings, floating point arithmetic and accumulated error.
Having made ...
What data type to use for money in Java? [closed]
...
Many banks handle far larger sums of money that $20,000,000 every day. This does not even take account of currencies like yen with large exchange rates to the dollar. Integer types may be best to avoid rounding problems although they get messy with interest and exchange rate...