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Never seen before C++ for loop
...#. In my opinion it is clearer, less of a trap for new programmers, and equally efficient.
As others have pointed out -- but to make my answer complete -- to make it work in C# you would need to change while(u--) to while(u-- != 0).
... or while(u-- >0) just in case u starts off negative. (OK, ...
Remove leading zeros from a number in Javascript [duplicate]
...console.log(`Subtracting zero conversion result: ${parsedNumber}`);
All results will be incorrect.
That's because, when converted, the numString value is greater than Number.MAX_SAFE_INTEGER. i.e.,
99999999999999999999 > 9007199254740991
This means all operation performed with the as...
How can I get the current screen orientation?
...lues ORIENTATION_PORTRAIT and ORIENTATION_LANDSCAPE. Is there a way to get all the four values from ActivityInfo? (That is LANDSCAPE_REVERSE and PORTRAIT_REVERSE as well)
– HRJ
May 4 '11 at 9:56
...
How to fix the “java.security.cert.CertificateException: No subject alternative names present” error
...ager that does not validate certificate chains
TrustManager[] trustAllCerts = new TrustManager[] {new X509TrustManager() {
public java.security.cert.X509Certificate[] getAcceptedIssuers() {
return null;
}
public void checkClientTrusted(X509...
What does |= (single pipe equal) and &=(single ampersand equal) mean
...icit cast, and the target variable is only evaluated once, but that's basically the gist of it.
In terms of the non-compound operators, & is a bitwise "AND" and | is a bitwise "OR".
EDIT: In this case you want Folder.Attributes &= ~FileAttributes.System. To understand why:
~FileAttribute...
UITableView set to static cells. Is it possible to hide some of the cells programmatically?
...imated:YES];
Note to always use only (reloadDataAnimated:YES/NO)
(dont call [self.tableView reloadData] directly)
This doesn't use the hacky solution with setting height to 0 and allows you to animate the change and hide whole sections
...
upstream sent too big header while reading response header from upstream
... to increase the proxy_buffer_size and the proxy_buffers, or disable it totally (Please read the nginx documentation).
Example of proxy buffering configuration
http {
proxy_buffer_size 128k;
proxy_buffers 4 256k;
proxy_busy_buffers_size 256k;
}
Example of disabling your proxy buffer ...
How can I create an error 404 in PHP?
My .htaccess redirects all requests to /word_here to /page.php?name=word_here . The PHP script then checks if the requested page is in its array of pages.
...
Finding duplicate rows in SQL Server
...nd there are many duplicate rows. I want to run a select statement to grab all of these and the amount of dupes, but also return the ids that are associated with each organization.
...
Regular expression to stop at first match
... your regular expression non-greedy, because by default, "(.*)" will match all of "file path/level1/level2" xxx some="xxx".
Instead you can make your dot-star non-greedy, which will make it match as few characters as possible:
/location="(.*?)"/
Adding a ? on a quantifier (?, * or +) makes it no...