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Setting an object to null vs Dispose()
...ode) to know when you're not going to use a reference again. For example:
StringBuilder sb = new StringBuilder();
sb.Append("Foo");
string x = sb.ToString();
// The string and StringBuilder are already eligible
// for garbage collection here!
int y = 10;
DoSomething(y);
// These aren't helping at...
Return a `struct` from a function in C
... Yes, I can put an array inside a struct, but I cannot e.g. write typedef char arr[100]; arr foo() { ... } An array cannot be returned, even if the size is known.
– Giorgio
Mar 11 '12 at 11:19
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Email validation using jQuery
...l could be written in better way. None part of domain can start with other char than [a-z0-9] (case insensitive). Also, valid e-mail (and domain) has some len limit, which is also not tested.
– tomis
Jul 5 '13 at 8:42
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The resulting API analysis is too large when upload app to mac store
..... store the selector name in reverse, like "dlroWolleH", then reverse the string before you call the method.
If Apple gets wise to that then you can encrypt them.
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Getting the encoding of a Postgres database
...
A programmatic solution:
SELECT pg_encoding_to_char(encoding) FROM pg_database WHERE datname = 'yourdb';
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How do I disable a Pylint warning?
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List with the actual strings to use: gist.github.com/m451/965bb613177dd4fa896b815aa0e0e365
– masi
Apr 7 at 11:55
add a co...
How to replace a character by a newline in Vim
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Use \r instead of \n.
Substituting by \n inserts a null character into the text. To get a newline, use \r. When searching for a newline, you’d still use \n, however. This asymmetry is due to the fact that \n and \r do slightly different things:
\n matches an end of line (newline...
Generating an MD5 checksum of a file
...turn hash_md5.hexdigest()
Note: hash_md5.hexdigest() will return the hex string representation for the digest, if you just need the packed bytes use return hash_md5.digest(), so you don't have to convert back.
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What's the difference between utf8_general_ci and utf8_unicode_ci?
...OLLATE ... and Description LIKE 'test%' COLLATE ... only process a single string ("test") at runtime, don't they? 3) In real apps, columns used in ordering would probably be indexed, and indexing speed on different collations with real non-ASCII text might differ.
– Halil Özg...
How to get StackPanel's children to fill maximum space downward?
...g space up between its child elements (giving them each the same amount of extra space). Elements should render fine if they are given more space than they wanted, but if you give them less you will start to see glitches.
If you want to be able to scroll the whole thing then I am afraid things wil...