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Regular expression to match any character being repeated more than 10 times
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PHP's preg_replace example:
$str = "motttherbb fffaaattther";
$str = preg_replace("/([a-z])\\1/", "", $str);
echo $str;
Here [a-z] hits the character, () then allows it to be used with \\1 backreference which tries to matc...
Is it possible to write to the console in colour in .NET?
...not be garbled. See stackoverflow.com/questions/4812508/…. It's just the order of the write-calls which is not "safe".
– BatteryBackupUnit
Oct 17 '17 at 9:29
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Is this a “good enough” random algorithm; why isn't it used if it's faster?
I made a class called QuickRandom , and its job is to produce random numbers quickly. It's really simple: just take the old value, multiply by a double , and take the decimal part.
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Merge and interleave two arrays in Ruby
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This won't give a result array in the order Chris asked for, but if the order of the resulting array doesn't matter, you can just use a |= b. If you don't want to mutate a, you can write a | b and assign the result to a variable.
See the set union documentation ...
How to print a percentage value in python?
...of that, that's why my answer does not have parenthesis in 1/3. Evaluation order is intentional: 100.0 * 1 / 3 => 100.0 / 3 => 0.33...
– MestreLion
Feb 14 '15 at 16:08
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MongoDB mongorestore failure: locale::facet::_S_create_c_locale name not valid
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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Javascript: formatting a rounded number to N decimals
...9999998.toFixed(4) correctly returns 1.0245.
– Matt Ball
Mar 13 '12 at 14:40
3
@MarkTomlin: Then ...
Accessing @attribute from SimpleXML
...ode. You can then var_dump the return value of the function.
More info at php.net
http://php.net/simplexmlelement.attributes
Example code from that page:
$xml = simplexml_load_string($string);
foreach($xml->foo[0]->attributes() as $a => $b) {
echo $a,'="',$b,"\"\n";
}
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Finding the source code for built-in Python functions?
...is a string, the return value is the same object.
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| Method resolution order:
| str
| basestring
| object
|
| Methods defined here:
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| __add__(...)
| x.__add__(y) <==> x+y
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| __contains__(...)
| x.__contains__(y) <==> y in x
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| __eq__(...)...
Encrypt & Decrypt using PyCrypto AES 256
...called the block and outputs a block. We use AES in a mode of operation in order to encrypt. The solutions above suggest using CBC, which is one example. Another is called CTR, and it's somewhat easier to use:
from Crypto.Cipher import AES
from Crypto.Util import Counter
from Crypto import Random
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