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Multi-key dictionary in c#? [duplicate]
I know there isn't one in the BCL but can anyone point me to a good opensource one?
16 Answers
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How can I list all collections in the MongoDB shell?
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Peter Mortensen
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answered Jan 14 '12 at 22:57
AdaTheDevAdaTheD...
Iterating over every two elements in a list
How do I make a for loop or a list comprehension so that every iteration gives me two elements?
21 Answers
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What does Java option -Xmx stand for? [duplicate]
...ol. This value must a multiple of 1024 greater than 2MB. Append the letter k or K to indicate kilobytes, or m or M to indicate megabytes. The default value is 64MB. The upper limit for this value will be approximately 4000m on Solaris 7 and Solaris 8 SPARC platforms and 2000m on Solaris 2.6 and x86 ...
Most efficient method to groupby on an array of objects
...al libraries, you can concisely implement a vanilla version of groupBy() like so:
var groupBy = function(xs, key) {
return xs.reduce(function(rv, x) {
(rv[x[key]] = rv[x[key]] || []).push(x);
return rv;
}, {});
};
console.log(groupBy(['one', 'two', 'three'], 'length'));
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Convert a JSON string to object in Java ME?
...it's perfect for J2ME.
You can parse JSON into Java object in one line like this,
JSONObject json = (JSONObject)new JSONParser().parse("{\"name\":\"MyNode\", \"width\":200, \"height\":100}");
System.out.println("name=" + json.get("name"));
System.out.println("width=" + json.get("width"));
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How do I measure execution time of a command on the Windows command line?
... and later are not supported) you can use The Windows Server 2003 Resource Kit, which contains timeit.exe that displays detailed execution stats. Here is an example, timing the command "timeit -?":
C:\>timeit timeit -?
Invalid switch -?
Usage: TIMEIT [-f filename] [-a] [-c] [-i] [-d] [-s] [-t] [...
Should I initialize variable within constructor or outside constructor [duplicate]
When I use Java based on my C++ knowledge, I love to initialize variable using the following way.
11 Answers
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Is there a way to iterate over a slice in reverse in Go?
It would be convenient to be able to say something like:
6 Answers
6
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Dynamic Sorting within SQL Stored Procedures
...ncredibly common need in any Web or Windows application with a database back-end.
15 Answers
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