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Apache Kafka vs Apache Storm
Apache Kafka: Distributed messaging system
Apache Storm: Real Time Message Processing
7 Answers
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How do you send a HEAD HTTP request in Python 2?
...can read the MIME type without having to download the content. Does anyone know of an easy way of doing this?
11 Answers
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How to extend an existing JavaScript array with another array, without creating a new array
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The .push method can take multiple arguments. You can use the spread operator to pass all the elements of the second array as arguments to .push:
>>> a.push(...b)
If your browser does not support ECMAScript 6, you can use .apply instead...
__proto__ VS. prototype in JavaScript
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__proto__ is the actual object that is used in the lookup chain to resolve methods, etc. prototype is the object that is used to build __proto__ when you create an object with new:
( new Foo ).__proto__ === Foo.prototype;
( new Foo ).prototype === undefined;
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Can “list_display” in a Django ModelAdmin display attributes of ForeignKey fields?
I have a Person model that has a foreign key relationship to Book , which has a number of fields, but I'm most concerned about author (a standard CharField).
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Default parameters with C++ constructors [closed]
...I prefer constructors with default parameters, so long as the parameters make sense. Classes in the standard use them as well, which speaks in their favor.
One thing to watch out for is if you have defaults for all but one parameter, your class can be implicitly converted from that parameter type....
How do i find out what all symbols are exported from a shared object?
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bdesham
13.3k1010 gold badges6767 silver badges112112 bronze badges
answered Aug 9 '09 at 4:17
Employed RussianEm...
What is the difference between float and double?
...use += to sum lots of floating point numbers, as the errors accumulate quickly. If you're using Python, use fsum. Otherwise, try to implement the Kahan summation algorithm.
[1]: The C and C++ standards do not specify the representation of float, double and long double. It is possible that all three...
Is it possible to listen to a “style change” event?
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Since jQuery is open-source, I would guess that you could tweak the css function to call a function of your choice every time it is invoked (passing the jQuery object). Of course, you'll want to scour the jQuery code to make sure there is nothing else it uses internally to set CSS prop...
Hash String via SHA-256 in Java
By looking around here as well as the internet in general, I have found Bouncy Castle . I want to use Bouncy Castle (or some other freely available utility) to generate a SHA-256 Hash of a String in Java. Looking at their documentation I can't seem to find any good examples of what I want to do. Ca...