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How many constructor arguments is too many?
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Sometimes it is simply not possible. Consider an Excel file with 50 columns that need to be processed. The idea of MyExcelFileLine class having a constructor with 50 arguments is quite scary.
– anar khalilov
Mar 28 '16 at 13:07
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Bare asterisk in function arguments?
...return a + b
...
>>> f(1, 2)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: f() takes 1 positional argument but 2 were given
>>> f(1, b=2)
3
Pragmatically, it means you have to call the function with a keyword argument. It's usuall...
How to parse a string to an int in C++?
... Running out of disk space is an exceptional condition. Malformatted data files which are computer produced are an exceptional condition. But typos in user input are not exceptional. It's good to have a parsing approach which is able to handle normal, non-exceptional parsing failures.
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How to apply a CSS filter to a background image
I have a JPEG file that I'm using as a background image for a search page, and I'm using CSS to set it because I'm working within Backbone.js contexts:
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What happens if i return before the end of using statement? Will the dispose be called?
... cases it's a non-issue, unless you're doing wonky stuff like writing to a file in your dispose method. Aside from the catastrophic program crash, that is.
– Randolpho
Jul 14 '10 at 15:51
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JPA : How to convert a native query result set to POJO class collection
...es within entities, so alternatively I do all this in the META-INF/orm.xml file:
<named-native-query name="GetAllJedi" result-set-mapping="JediMapping">
<query>SELECT name,age FROM jedi_table</query>
</named-native-query>
<sql-result-set-mapping name="JediMapping">...
jQuery vs document.querySelectorAll
...evels, if only because there's more functional code visible at once in the file you are viewing. In this sense, 5 lines of code is better than 10.
To sum up, I see the main benefits of jQuery as being concise code, and ubiquity.
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Simplest way to detect a mobile device in PHP
... Its working fine.
http://mobiledetect.net/
use like this
//include the file
require_once 'Mobile_Detect.php';
$detect = new Mobile_Detect;
// Any mobile device (phones or tablets).
if ( $detect->isMobile() ) {
//do some code
}
// Any tablet device.
if( $detect->isTablet() ){
//do some ...
Why does this code segfault on 64-bit architecture but work fine on 32-bit?
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Most likely because you're not including the header file for malloc and, while the compiler would normally warn you of this, the fact that you're explicitly casting the return value means you're telling it you know what you're doing.
That means the compiler expects an int to ...
How JavaScript closures are garbage collected
... can't find anything in the (standard)[ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf] says anything about only the variables that it uses internally should be available. In section 13, the production step 4: Let closure be the result of creating a new Function object as specified in...