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Fastest way to convert string to integer in PHP
...nd a half times slower, and the difference is the greatest if your input already is an integer.
I'd be interested to know why though.
Update: I've run the tests again, this time with coercion (0 + $var)
| INPUT ($x) | (int) $x |intval($x) | 0 + $x |
|-----------------|------------|---...
Can I use a binary literal in C or C++?
... 10010
hex: 0012, dec: 18, oct: 000022, bin: 0000000000010010
Also read Herb Sutter's The String Formatters of Manor Farm for an interesting discussion.
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Is arr.__len__() the preferred way to get the length of an array in Python?
... than calling __len__().
If you are interested in such details, you could read the book called "Fluent Python" by Luciano Ramalho. There're many interesting details in it, and may help you understand Python more deeply.
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python location on mac osx
.../usr/local/bin/ and printed sys.executable. It says /usr/bin/python. but I read the docs and it says that the apple-provided was in /usr/bin/ and the macpython's "A symlink to the Python executable is placed in /usr/local/bin/".
– goh
Jul 25 '11 at 17:13
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How to use NSJSONSerialization
... *jsonArray = [NSJSONSerialization JSONObjectWithData: data options: NSJSONReadingMutableContainers error: &e];
if (!jsonArray) {
NSLog(@"Error parsing JSON: %@", e);
} else {
for(NSDictionary *item in jsonArray) {
NSLog(@"Item: %@", item);
}
}
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No identities were available - administrator request
... same bundle ID. (Yes, this will work if you are updating an app that is already live). Download the cert and prov. profile and run both (double click). Now repeat step 6 and archive. This should work.
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Mongo: find items that don't have a certain field
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However, somebody reading the code might interpret it as the field has to be equal to null and not missing. This is actually unexpected behavior, because you wouldn't be able to do the same for 0 (which is also false), so null is kind of the e...
Rails bundle install production only
... config/boot.rb), but bundler doesn't know anything about rails... It only reads the Gemfile and doesn't use any of those rails files. I think the coin finally dropped. Thanks for your help!
– gingerlime
Jun 7 '12 at 11:43
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Test if object implements interface
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@dsdsdsdsd Since this post I didn't even heard/read about it, but after looking up on Google I figured it out it is abbreviation of the Null Pointer Exception.
– ozanmuyes
May 24 '16 at 20:21
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Named capturing groups in JavaScript regex?
... that it does not support verbose regexes which would make the creation of readable, complex regular expressions a lot easier.
Steve Levithan's XRegExp library solves these problems.
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