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Why must we define both == and != in C#?

...ality operator, that all objects have, there is not an overload for it.1 Knowing that this is the case, the real question is: Why was this designed in this way and why doesn't the compiler figure it out on its own? A lot people are saying this wasn't a design decision, but I like to think it was t...
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Section vs Article HTML5

... I feel like this war between article and section will go one now because of the confusion. But Justin Im 100% on board your use of section over article as section applies to parts of documents (as you have shown) where article is stand-alone, independent content INSIDE the document (an...
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What is the difference between up-casting and down-casting with respect to class variable

...g) animal; Basically what you're doing is telling the compiler that you know what the runtime type of the object really is. The compiler will allow the conversion, but will still insert a runtime sanity check to make sure that the conversion makes sense. In this case, the cast is possible because ...
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When to use next() and return next() in Node.js

... @AdamD I would like to know that as well. – theprogrammer Sep 1 at 23:01 ...
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JavaScript dependency management: npm vs. bower vs. volo [closed]

... @Nate The name is simply where it started. NPM is now a very general purpose package management system. I regularly use npm to install front-end modules. There is no difference in using NPM for commonjs modules, vs amd, vs anything else. You could use npm just as well for no...
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Why does Razor _layout.cshtml have a leading underscore in file name?

...ghtful answer. I was under the misapprehension that Razor was tied to MVC. Now I see the reason for the leading underscore is to prevent them from being served directly under ASP.NET Web Pages. – richb Jan 3 '11 at 1:53 ...
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performSelector may cause a leak because its selector is unknown

...e (the (void *) on the right hand side simply tells the compiler that you know what you're doing and not to generate a warning since the pointer types don't match). Finally, you call the function pointer2. Complex Example When the selector takes arguments or returns a value, you'll have to change...
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How to check if two arrays are equal with JavaScript? [duplicate]

...akes no guarantee whatsoever. [2017 update: Actually the ES6 specification now guarantees object keys will be iterated in order of 1) integer properties, 2) properties in the order they were defined, then 3) symbol properties in the order they were defined. Thus IF the JSON.stringify implementation ...
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const char * const versus const char *?

... (I know this is old but I wanted to share anyway.) Just wanted to elaborate on Thomas Matthews' answer. The Right-Left Rule of C type declarations pretty much says: when reading a C type declaration start at the identifier and g...
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Generate a heatmap in MatPlotLib using a scatter data set

...in plot; so do (AFAIK) all of the plotting libraries for R; still i don't know if this is the generally accepted term for plots of this type, though i suspect it's likely given that hexbin is short for hexagonal binning, which is describes the essential step in preparing the data for display.) fr...