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best way to get the key of a key/value javascript object
...ll(o,p)) ret.push(p);
return ret;
}
Of course if you want both, key and value, then for...in is the only reasonable solution.
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Does MongoDB's $in clause guarantee order
...the results
{ "$sort": { "weight": 1 } }
])
So that would be the expanded form. What basically happens here is that just as the array of values is passed to $in you also construct a "nested" $cond statement to test the values and assign an appropriate weight. As that "weight" value reflects t...
List of Stored Procedures/Functions Mysql Command Line
...n I see the list of the stored procedures or stored functions in mysql command line like show tables; or show databases; commands.
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Find the number of downloads for a particular app in apple appstore [closed]
...als the info. The best you can do is find a few companies that are sharing and then extrapolate based on app ranking (which is available publicly). The best you'll get is a ball park estimate.
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How to split a string, but also keep the delimiters?
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You can use Lookahead and Lookbehind. Like this:
System.out.println(Arrays.toString("a;b;c;d".split("(?<=;)")));
System.out.println(Arrays.toString("a;b;c;d".split("(?=;)")));
System.out.println(Arrays.toString("a;b;c;d".split("((?<=;)|(?=;...
Is there a Rake equivalent in Python?
Rake is a software build tool written in Ruby (like Ant or Make ), and so all its files are written in this language. Does something like this exist in Python?
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Remove blank lines with grep
I tried grep -v '^$' in Linux and that didn't work. This file came from a Windows file system.
14 Answers
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Visual Studio 2010 always thinks project is out of date, but nothing has changed
...Enable C++ project system logging to enable debug logging in Visual Studio and let it just tell you what's causing the rebuild:
Open the devenv.exe.config file (found in %ProgramFiles%\Microsoft Visual Studio 10.0\Common7\IDE\ or in %ProgramFiles(x86)%\Microsoft Visual Studio 10.0\Common7\IDE\). F...
How do I make a list of data frames?
How do I make a list of data frames and how do I access each of those data frames from the list?
8 Answers
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How can I upload files asynchronously?
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With HTML5 you can make file uploads with Ajax and jQuery. Not only that, you can do file validations (name, size, and MIME type) or handle the progress event with the HTML5 progress tag (or a div). Recently I had to make a file uploader, but I didn't want to use Flash no...