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Fastest hash for non-cryptographic uses?
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CRC32 is pretty fast and there's a function for it: http://www.php.net/manual/en/function.crc32.php
But you should be aware that CRC32 will have more collisions than MD5 or even SHA-1 hashes, simply because of the reduced length (32 bits compare...
How to convert timestamps to dates in Bash?
I need a shell command or script that converts a Unix timestamp to a date. The input can come either from the first parameter or from stdin, allowing for the following usage patterns:
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What is the Scala identifier “implicitly”?
...ave seen a function named implicitly used in Scala examples. What is it, and how is it used?
3 Answers
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Casting a variable using a Type variable
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Here is an example of a cast and a convert:
using System;
public T CastObject<T>(object input) {
return (T) input;
}
public T ConvertObject<T>(object input) {
return (T) Convert.ChangeType(input, typeof(T));
}
Edit:
Some p...
Run a Docker image as a container
... answered Aug 28 '13 at 21:14
AndyAndy
28.2k44 gold badges3636 silver badges4949 bronze badges
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How to Iterate over a Set/HashSet without an Iterator?
...accessing the underlying structure that holds the data through reflection, and replicating the code provided by Set#iterator...
– assylias
Sep 17 '12 at 8:46
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Merging dictionaries in C#
...ary(group => group.Key, group => group.First());
It's a bit ugly - and inefficient - but it's the quickest way to do it in terms of code. (I haven't tested it, admittedly.)
You could write your own ToDictionary2 extension method of course (with a better name, but I don't have time to think ...
Javascript objects: get parent [duplicate]
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No. There is no way of knowing which object it came from.
s and obj.subObj both simply have references to the same object.
You could also do:
var obj = { subObj: {foo: 'hello world'} };
var obj2 = {};
obj2.subObj = obj.subObj;
var s = obj.subObj;
You now have three references, obj...
Load multiple packages at once
...w can I load a bunch of packages at once with out retyping the require command over and over? I've tried three approaches all of which crash and burn.
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What does void mean in C, C++, and C#?
Looking to get the fundamentals on where the term " void " comes from, and why it is called void. The intention of the question is to assist someone who has no C experience, and is suddenly looking at a C-based codebase.
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