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Are Java static calls more or less expensive than non-static calls?
...ime: 3.12 memory: 320576 signal:0
Name | Iterations
VirtualTest | 128009996
NonVirtualTest | 301765679
StaticTest | 352298601
Done.
As expected, virtual method calls are the slowest, non-virtual method calls are faster, and static method calls are even faster.
What I di...
Script parameters in Bash
...n these variables too, so for this:
./ocrscript.sh -from /home/kristoffer/test.png -to /home/kristoffer/test.txt
You'll get:
$0 # ocrscript.sh
$1 # -from
$2 # /home/kristoffer/test.png
$3 # -to
$4 # /home/kristoffer/test.txt
It might be easier to omit the -from and the -to, like...
(Built-in) way in JavaScript to check if a string is a valid number
...er". "not a number" is not the same as "IEEE-794 NaN", which is what isNaN tests for. In particular, this usage fails when testing booleans and empty strings, at least. See developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/….
– EML
Dec 30 '13 at 0:33
...
Bypass popup blocker on window.open when JQuery event.preventDefault() is set
... But if you can't, there you go.
Here's an example of code that fails the test because of the asynchronous call:
Live example | Live source (The live links no longer work because of changes to JSBin)
jQuery(function($) {
// This version doesn't work, because the window.open is
// not during t...
Truncating all tables in a Postgres database
...= 'public'
LOOP
RAISE NOTICE '%',
-- EXECUTE -- dangerous, test before you execute!
format('TRUNCATE TABLE %I.%I CASCADE', _sch, _tbl);
END LOOP;
END
$func$ LANGUAGE plpgsql;
format() requires Postgres 9.1 or later. In older versions concatenate the query string like th...
How to exclude a directory in find . command
...end into the skipped directory, but -not -path will be false whenever find tests each file.
Issues with -prune
-prune does what it's intended to, but are still some things you have to take care of when using it.
find prints the pruned directory.
TRUE That's intended behavior, it just doesn't d...
How to find all occurrences of a substring?
... powerful regular expressions:
import re
[m.start() for m in re.finditer('test', 'test test test test')]
#[0, 5, 10, 15]
If you want to find overlapping matches, lookahead will do that:
[m.start() for m in re.finditer('(?=tt)', 'ttt')]
#[0, 1]
If you want a reverse find-all without overlaps, y...
Test if number is odd or even
...
This would definitely be the fastest way when using integers in a language like C, by a large margin. Has anyone done benchmarks to determine if this is true also for PHP?
– thomasrutter
Dec 5 '13 at 0:03
...
What's the fastest way to convert String to Number in JavaScript?
...as I know.
Number(x);
parseInt(x, 10);
parseFloat(x);
+x;
By this quick test I made, it actually depends on browsers.
http://jsperf.com/best-of-string-to-number-conversion/2
Implicit marked the fastest on 3 browsers, but it makes the code hard to read… So choose whatever you feel like it!
...
C# Sanitize File Name
...gnoreCase);
}
return sanitisedNamePart;
}
And these are my unit tests
[Test]
public void CoerceValidFileName_SimpleValid()
{
var filename = @"thisIsValid.txt";
var result = PathHelper.CoerceValidFileName(filename);
Assert.AreEqual(filename, result);
}
[Test]
public void Coer...