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Understanding prototypal inheritance in JavaScript
...ript spent so much special effort to prepare for us?
Two things. One: the meaning of this is flexible. Two: Car is a function. It's possible to call Car, not with a pristine, fresh instantiated object, but instead with, say, a SuperCar object. That gives us the final solution, which is part of the ...
What is a “thread” (really)?
...enVoigt. A few clarifications that noobs like me may stumble over: what is meant by "processor registers"? What is meant by "instruction pointer" and "stack pointer"?
– BKSpurgeon
Apr 13 '16 at 12:30
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Difference between CC, gcc and g++?
...ler from the GCC.
The hard part, because it is platform-specific, is the meaning of 'CC' (and 'cc').
On Solaris, CC is normally the name of the Sun C++ compiler.
On Solaris, cc is normally the name of the Sun C compiler.
On Linux, if it exists, CC is probably a link to g++.
On Linux, cc is a lin...
Refresh image with a new one at the same url
...amp; easy to understand and implement.
Cons: Bypasses caching altogether, meaning unnecessary delays and bandwidth use whenever the image doesn't change between views. Will potentially fill browser cache (and any intermediate caches) with many, many copies of exactly the same image! Also, requires ...
Effect of NOLOCK hint in SELECT statements
...lect.
Why would this be?
NOLOCK typically (depending on your DB engine) means give me your data, and I don't care what state it is in, and don't bother holding it still while you read from it. It is all at once faster, less resource-intensive, and very very dangerous.
You should be warned to ne...
++someVariable vs. someVariable++ in JavaScript
...
Same as in other languages:
++x (pre-increment) means "increment the variable; the value of the expression is the final value"
x++ (post-increment) means "remember the original value, then increment the variable; the value of the expression is the original value"
Now whe...
Why does Unicorn need to be deployed together with Nginx?
...
I agree with @gorn. This meant nothing to me, for example.
– BalinKingOfMoria Reinstate CMs
Nov 16 '15 at 22:08
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Proper use of beginBackgroundTaskWithExpirationHandler
...s a number of people have noted, storing the task identifier as a property means that it can be overwritten if the method is called multiple times, leading to a task that will never be gracefully ended until forced to end by the OS at the time expiration.
This pattern requires a unique property for ...
How to write an inline IF statement in JavaScript?
... like PHP, carry on the actual result of the operation i.e. true or false, meaning the result is always true or false; e.g:
14 && 0 /// results as 0, not false
14 || 0 /// results as 14, not true
1 && 2 && 3 && 4 /// results as 4, not true
true &a...
EC2 instance types's exact network performance?
... When you say bandwidth is bound by "instance-size", does it mean adding more ENIs (to instances that support this) do not increase the overall throughput ? This is what I am seeing on c4.large instances, and was looking for some validation.
– Abhinav
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