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Accessing items in an collections.OrderedDict by index
...The first time you say "next()", it really means "first.")
In my informal test, next(iter(d.items())) with a small OrderedDict is only a tiny bit faster than items()[0]. With an OrderedDict of 10,000 entries, next(iter(d.items())) was about 200 times faster than items()[0].
BUT if you save the i...
How do I get the YouTube video ID from a URL?
...mbed\/)|(?:(?:watch)?\?v(?:i)?=|\&v(?:i)?=))([^#\&\?]*).*/
// For testing.
var urls = [
'//www.youtube-nocookie.com/embed/up_lNV-yoK4?rel=0',
'http://www.youtube.com/user/Scobleizer#p/u/1/1p3vcRhsYGo',
'http://www.youtube.com/watch?v=cKZDdG9FTKY&feature=channel',
'http:/...
Best approach to converting Boolean object to string in java
...Object obj) {
return (obj == null) ? "null" : obj.toString();
}
Just test this code:
Boolean b = null;
System.out.println(String.valueOf(b)); // Prints null
System.out.println(Boolean.toString(b)); // Throws NPE
For primitive boolean, there is no difference.
...
Using ECMAScript 6
...
Arrow functions are now fully implemented in the latest version of chrome. This tip remains useful for other ES6 features though. Like the class syntax, for example.
– Adam Brown
Oct 30 '15 at 2:05
...
Ideal Ruby project structure
... freewill
├── lib/
│ └── freewill.rb
├── test/
│ └── test_freewill.rb
├── README
├── Rakefile
└── freewill.gemspec
share
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How to change checkbox's border style in CSS?
... You may need to add !important to your css when using outline. I was testing this in Firefox 12.0 and without !important the outline would vanish for as long as I was clicking the checkbox.
– Weezle
May 16 '12 at 20:18
...
Is there an alternative sleep function in C to milliseconds?
... Also note that when compiling with gcc -Wall -g3 -std=c11 -o sleep_test sleep_test.c && ./sleep_test on Linux Ubuntu, with gcc version 4.8.4, I get the following warning: warning: implicit declaration of function ‘usleep’ [-Wimplicit-function-declaration]. The solution is to add ...
PHP: How to send HTTP response code?
...04);
I recommend the 2nd one. The first does work on all browsers I have tested, but some minor browsers or web crawlers may have a problem with a header line that only contains a colon. The header field name in the 2nd. variant is of course not standardized in any way and could be modified, I jus...
Java JUnit: The method X is ambiguous for type Y
I had some tests working fine. Then, I moved it to a different package, and am now getting errors. Here is the code:
3 Answ...
How to check internet access on Android? InetAddress never times out
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Yes, very fast ;-)
Is there no reliable way to check internet, other than testing something on the internet?
Not as far as I know, but let me know, and I will edit my answer.
What if the DNS is down?
Google DNS (e.g. 8.8.8.8) is the largest public DNS in the world. As of 2013 it served 130 billio...