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What is the difference between a shim and a polyfill?
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A shim is any piece of code that performs interception of an API call and provides a layer of abstraction. It isn't necessarily restricted to a web application or HTML5/CSS3.
A polyfill is a type of shim that retrofits legacy browse...
~x + ~y == ~(x + y) is always false?
Does this code always evaluate to false? Both variables are two's complement signed ints.
11 Answers
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When should you not use virtual destructors?
Is there ever a good reason to not declare a virtual destructor for a class? When should you specifically avoid writing one?
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Finding current executable's path without /proc/self/exe
... that Linux has it easy with /proc/self/exe. But I'd like to know if there is a convenient way to find the current application's directory in C/C++ with cross-platform interfaces. I've seen some projects mucking around with argv[0], but it doesn't seem entirely reliable.
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Explain the use of a bit vector for determining if all characters are unique
I am confused about how a bit vector would work to do this (not too familiar with bit vectors). Here is the code given. Could someone please walk me through this?
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What is the correct way of using C++11's range-based for?
What is the correct way of using C++11's range-based for ?
4 Answers
4
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What are the file limits in Git (number and size)?
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This message from Linus himself can help you with some other limits
[...] CVS, ie it really ends up being pretty much oriented to a "one file
at a time" model.
Which is nice in that you can have a million files, and ...
Express.js: how to get remote client address
...headers['x-forwarded-for'] || req.connection.remoteAddress;
If the proxy isn't 'yours', I wouldn't trust the 'x-forwarded-for' header, because it can be spoofed.
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Easiest way to flip a boolean value?
I just want to flip a boolean based on what it already is. If it's true - make it false. If it's false - make it true.
13 A...
Is there a limit on how much JSON can hold?
I am using jquery, JSON, and AJAX for a comment system. I am curious, is there a size limit on what you can send through/store with JSON? Like if a user types a large amount and I send it through JSON is there some sort of maximum limit?
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