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Difference between null and empty (“”) Java String
...ull.concat("a") it gives the null pointer exception. what is the reason in my first case null+"a"; is working.
– Ved Prakash
Sep 14 '19 at 16:23
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Do c++11 lambdas capture variables they don't use?
...he lambda expression, then the variable is not captured. In your example, my_huge_vector is not captured.
Per C++11 §5.1.2[expr.prim.lambda]/11:
If a lambda-expression has an associated capture-default and its compound-statement odr-uses this or a variable with automatic storage duration and the...
Include CSS,javascript file in Yii Framework
...ax file create conflict in calling js functions.
For more detail Look at my blog article
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How to increment datetime by custom months in python without using library [duplicate]
...e. If you are worried about hours, minutes and seconds you need to modify my code to use datetime and copy hours, minutes and seconds from the source to the result.
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Cannot pass null argument when using type hinting
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In my opinion this is a poor language construct. 1. In other languages null has the ability to be of any type thus making null a valid argument in this case. 2: Php is using a default value for an argument to specify that null i...
Difference between if () { } and if () : endif;
...r code and don't want to have a lot of echos in your code. For example, in my .phtml files (Zend Framework) I will write something like this:
<?php if($this->value): ?>
Hello
<?php elseif($this->asd): ?>
Your name is: <?= $this->name ?>
<?php else: ?>
You don't have...
How to get back to most recent version in Git?
...branch with the previous modifications and commit them:
$ git checkout -b my_new_branch
$ git add my_file.ext
$ git commit -m "My cool msg"
After this you can go back to your master branch (most recent version):
$ git checkout master
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How to 'grep' a continuous stream?
...ing BSD grep (FreeBSD, Mac OS X etc.)
tail -f file | grep --line-buffered my_pattern
You don't need to do this for GNU grep (used on pretty much any Linux) as it will flush by default (YMMV for other Unix-likes such as SmartOS, AIX or QNX).
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How to free memory in Java?
...ta Cruz What do you mean it does not free memory? I just tested it out on my program that seemed to have a leak and the ram usage seemed to stabilize? And Daniel just said it only suggests it then how come the percentage of ram used always stabilized each time I called the method. You people are co...
Redis - Connect to Remote Server
...uctions on the Quick Start guide on http://redis.io/topics/quickstart on my Ubuntu 10.10 server. I'm running the service as dameon (so it can be run by init.d)
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