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Truncate number to two decimal places without rounding
...2.55
2.99999 => 2.99
4.27 => 4.27
15.7784514 => 15.77
123.5999 => 123.59
0.000000199 => 1.99 *
* As mentioned in the note, that's due to javascript implicit conversion into exponential for "1.99e-7"
And for some other values of n:
15.001097 => 15.0010 (n=4)
0.00...
How do I return to an older version of our code in Subversion?
...nd the right revision number.
Note down the good revision number (assuming 123 for examples below).
Update to the latest revision:
svn update
Undo all the changes between the revision you want and the latest version:
svn merge -r HEAD:123 .
svn commit "Reverted to revision 123"
(the same as Jon...
A numeric string as array key in PHP
Is it possible to use a numeric string like "123" as a key in a PHP array, without it being converted to an integer?
11 A...
How do I get a list of all subdomains of a domain? [closed]
...ering.com, my google search looks like this: site:realtimerendering.com -"www.realtimerendering.com" -"kesen.realtimerendering.com" -"erich.realtimerendering.com" -"advances.realtimerendering.com"
– ahcox
Oct 15 '15 at 18:02
...
When to use @QueryParam vs @PathParam
...with algorithm. For example the google engine use query strings:
http:// www.google.com/search?q=rest
To sum up, there's not any strong reason to use one of this methods but whenever you can, use URI variables.
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What does -> mean in Python function definitions?
...cs.python.org/3/reference/compound_stmts.html#function-definitions
https://www.python.org/dev/peps/pep-3107/
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Asserting successive calls to a mock method
...th=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4...
How can I print the contents of a hash in Perl?
...
Data::Dumper is your friend.
use Data::Dumper;
my %hash = ('abc' => 123, 'def' => [4,5,6]);
print Dumper(\%hash);
will output
$VAR1 = {
'def' => [
4,
5,
6
],
'abc' => 123
...
In Java, when should I create a checked exception, and when should it be a runtime exception? [dupli
...
Fundamentally the only difference between checked exceptions and unchecked exceptions is that the compiler forces you to document checked exceptions. You should be documenting any exceptions your code can throw anyway; I can...
Parse query string into an array
...alone is note accurate, it could display for example:
$url = "somepage?id=123&lang=gr&size=300";
parse_str() would return:
Array (
[somepage?id] => 123
[lang] => gr
[size] => 300
)
It would be better to combine parse_str() with parse_url() like so:
$url = "som...