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How to use clock() in C++
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From what I can see here cplusplus.com/reference/ctime/clock, you don't need use the "std::" notation. Just use "clock()"
– gromit190
Jan 28 '16 at 18:23
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Excel: last character/string match in a string
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With newer versions of excel come new functions and thus new methods. Though it's replicable in older versions (yet I have not seen it before), when one has Excel O365 one can use:
=MATCH(2,1/(MID(A1,SEQUENCE(LEN(A1)),1)="Y"))
This can also be used to...
Is there a standard sign function (signum, sgn) in C/C++?
...unction that returns -1 for negative numbers and +1 for positive numbers.
http://en.wikipedia.org/wiki/Sign_function
It's easy enough to write my own, but it seems like something that ought to be in a standard library somewhere.
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How to do URL decoding in Java?
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Be careful with this. As noted here: blog.lunatech.com/2009/02/03/… This is not about URLs, but for HTML form encoding.
– Michal
May 27 '15 at 12:29
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PHP exec() vs system() vs passthru()
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As drawn from http://php.net/ && Chipmunkninja:
The system() Function
The system function in PHP takes a string argument with the command to
execute as well as any arguments you wish passed to that command. This
functi...
Build.scala, % and %% symbols meaning
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From the official documentation:
http://www.playframework.com/documentation/2.1.1/SBTDependencies
Getting the right Scala version with %%
If you use groupID %% artifactID % revision instead of groupID % artifactID % revision (the difference is the d...
Determine what attributes were changed in Rails after_save callback?
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model.saved_changes
Rails < 5.1
model.previous_changes
Also see: http://api.rubyonrails.org/classes/ActiveModel/Dirty.html#method-i-previous_changes
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Ruby capitalize every word first letter
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Look into the String#capitalize method.
http://www.ruby-doc.org/core-1.9.3/String.html#method-i-capitalize
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fo...
How to check that an object is empty in PHP?
...empty"; // JSON: {}
}
else
{
echo "Object has properties";
}
Source: http://php.net/manual/en/language.oop5.object-comparison.php
Edit: added example
$one = new stdClass();
$two = (object)array();
var_dump($one == new stdClass()); // TRUE
var_dump($two == new stdClass()); // TRUE
var_dump($...
How to implement an abstract class in ruby?
...ified the code a bit, to use extend instead of include, due to: yehudakatz.com/2009/11/12/better-ruby-idioms
– Magne
Dec 2 '17 at 15:38
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