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How to get RGB values from UIColor?
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If someone finding problem on how to get values from colors, you can write something like, CGFloat red = colors[0];
– Hemang
Jul 2 '14 at 9:49
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How to inspect the return value of a function in GDB?
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May b a stupid question What if function does not have return value?
– Roon13
Oct 15 '18 at 23:29
add a comment
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How to convert array to SimpleXML
...xml = new SimpleXMLElement('<rootTag/>');
to_xml($xml, $my_array);
Now $xml contains a beautiful XML object based on your array exactly how you wrote it.
print $xml->asXML();
share
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im...
Understanding slice notation
...lue represents the first value that is not in the selected slice. So, the difference between stop and start is the number of elements selected (if step is 1, the default).
The other feature is that start or stop may be a negative number, which means it counts from the end of the array instead of th...
“static const” vs “#define” vs “enum”
...ar 5
enum { var = 5 };
Ignoring issues about the choice of name, then:
If you need to pass a pointer around, you must use (1).
Since (2) is apparently an option, you don't need to pass pointers around.
Both (1) and (3) have a symbol in the debugger's symbol table - that makes debugging easier. ...
Extract file name from path, no matter what the os/path format
....path.split or os.path.basename as others suggest won't work in all cases: if you're running the script on Linux and attempt to process a classic windows-style path, it will fail.
Windows paths can use either backslash or forward slash as path separator. Therefore, the ntpath module (which is equiv...
sort object properties and JSON.stringify
...b. That way, all the recursion complexity is handled by stringify, and we know that it knows its stuff, and how to handle each object type :
function JSONstringifyOrder( obj, space )
{
var allKeys = [];
JSON.stringify( obj, function( key, value ){ allKeys.push( key ); return value; } )
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I need to generate uuid for my rails application. What are the options(gems) I have? [duplicate]
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yes of course. And yet the question specifically referred to 1.8.7.
– existentialmutt
Aug 25 '14 at 17:37
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Unioning two tables with different number of columns
...atching column ordering that is implied by the use of * as column list specifier. This type of errors can be easily avoided by entering the column list explicitly:
select col_a, col_b, col_c from test1_1790
union all
select col_a, col_b, col_c from test2_1790;
A more frequent scenario for this erro...
How to solve PHP error 'Notice: Array to string conversion in…'
... through it and echo each element, or you can use print_r.
Alternatively, if you don't know if it's an array or a string or whatever, you can use var_dump($var) which will tell you what type it is and what it's content is. Use that for debugging purposes only.
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