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Why is React's concept of Virtual DOM said to be more performant than dirty model checking?
...nd the speaker mentioned that dirty-checking of the model can be slow. But isn't calculating the diff between virtual DOMs actually even less performant since the virtual DOM, in most of the cases, should be bigger than model?
...
MYSQL OR vs IN performance
I am wondering if there is any difference in regards to performance between the following
14 Answers
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What does enctype='multipart/form-data' mean?
...sible with HTTP requests generated using other means than an HTML form submission. JSON is a common format for use with web services and some still use SOAP.)
The specifics of the formats don't matter to most developers. The important points are:
Never use text/plain.
When you are writing clien...
Why use AJAX when WebSockets is available?
...
WebSockets isn't intended to replace AJAX and is not strictly even a replacement for Comet/long-poll (although there are many cases where this makes sense).
The purpose of WebSockets is to provide a low-latency, bi-directional, full-du...
How to split one string into multiple strings separated by at least one space in bash shell?
... loop? Bash, for one, will split on whitespace automatically.
sentence="This is a sentence."
for word in $sentence
do
echo $word
done
This
is
a
sentence.
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Where does mongodb stand in the CAP theorem?
Everywhere I look, I see that MongoDB is CP.
But when I dig in I see it is eventually consistent.
Is it CP when you use safe=true? If so, does that mean that when I write with safe=true, all replicas will be updated before getting the result?
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LinkedBlockingQueue vs ConcurrentLinkedQueue
My question relates to this question asked earlier. In situations where I am using a queue for communication between producer and consumer threads would people generally recommend using LinkedBlockingQueue or ConcurrentLinkedQueue ?
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Convert JavaScript string in dot notation into an object reference
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recent note: While I'm flattered that this answer has gotten many upvotes, I am also somewhat horrified. If one needs to convert dot-notation strings like "x.a.b.c" into references, it could (maybe) be a sign that there is something very wrong going on (unless mayb...
Copy constructor for a class with unique_ptr
...rator=( const A& a )
{
up_.reset( new int( *a.up_ ) );
return *this,
}
A& operator=( A&& a )
{
up_ = std::move( a.up_ );
return *this,
}
If you want to use your class in a std::vector, you basically have to decide if the vector shall be the unique owner of an object, i...
Architecture for merging multiple user accounts together
Okay, I got a website where you can register yourself and login. You can also login with your facebook, twitter or linkedin account.
...