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Generating random numbers in Objective-C
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You should use the arc4random_uniform() function. It uses a superior algorithm to rand. You don't even need to set a seed.
#include <stdlib.h>
// ...
// ...
int r = arc4random_uniform(74);
The arc4random man page:
NAME
arc4random, arc4random_...
Javascript how to split newline
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You should parse newlines regardless of the platform (operation system)
This split is universal with regular expressions. You may consider using this:
var ks = $('#keywords').val().split(/\r?\n/);
E.g.
"a\nb\r\nc\r\nlala".split(/\r?\n/) // ["a", "b", "c", "lala"]
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What is a regular expression which will match a valid domain name without a subdomain?
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Well, it's pretty straightforward a little sneakier than it looks (see comments), given your specific requirements:
/^[a-zA-Z0-9][a-zA-Z0-9-]{1,61}[a-zA-Z0-9]\.[a-zA-Z]{2,}$/
But note this will reject a lot of valid domains.
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Substitute multiple whitespace with single whitespace in Python [duplicate]
...d rather avoid REs) is
' '.join(mystring.split())
The split and join perform the task you're explicitly asking about -- plus, they also do the extra one that you don't talk about but is seen in your example, removing trailing spaces;-).
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How to get a cross-origin resource sharing (CORS) post request working
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this is the only solution worked for us without changeing anything on server-side...thanx miracool
– Timsta
Jul 13 '18 at 21:12
2
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What is the easiest way to parse an INI file in Java?
I am writing a drop-in replacement for a legacy application in Java. One of the requirements is that the ini files that the older application used have to be read as-is into the new Java Application. The format of this ini files is the common windows style, with header sections and key=value pairs...
AfxGetMainWnd函数解惑 - C/C++ - 清泛网 - 专注C/C++及内核技术
...时也会失灵。不信， 你测试一下下面的代码：
unsigned __stdcall SecondThreadFunc( void* pArguments )
{
CMainFrame* pMainWnd = (CMainFrame*)AfxGetMainWnd();
if (NULL!=pMainWnd)
{
CView *pView = pMainWnd->GetActiveView();
if (NULL...
How to crop circular area from bitmap in Android
...raw the clipped bitmap into a buffer that has been erased to transparent beforehand. I think either would be a bit faster and simpler than this.
– Gene
Dec 1 '12 at 0:36
1
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How to crop an image in OpenCV using Python
How can I crop images, like I've done before in PIL, using OpenCV.
8 Answers
8
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Get selected subcommand with argparse
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I also like to add required=True to force users to use a subcommand.
– Ben
Jun 19 '19 at 17:34
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