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How many socket connections can a web server handle?
...eed 64GB of RAM. If each client needs to read a file, the disk or storage array access load becomes much larger than those devices can handle. If a server needs to fork one process per connection then the OS will spend the majority of its time context switching or starving processes for CPU time.
...
MySQL INSERT INTO table VALUES.. vs INSERT INTO table SET
... a benefit, which has already been pointed out: you need only loop over an array of key/value pairs once to create your INSERT statement, instead of twice as you would need to using the VALUES syntax, which leads to shorter, clearer, and faster-to-write code.
– Mark Amery
...
Mockito: Stubbing Methods That Return Type With Bounded Wild-Cards
...to.mock(DummyClass.class);
List<? extends Number> someList = new ArrayList<Integer>();
Mockito.doReturn(someList).when(dummyClass).dummyMethod();
Assert.assertEquals(someList, dummyClass.dummyMethod());
}
as discussed on Mockito's google group.
While this is simpler th...
Difference between object and class in Scala
... use main method in object, not in class.
object Hello {
def main(args: Array[String]) {
println("Hello, World!")
}
}
You also may use it as you use singleton object in java.
share
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Requirejs domReady plugin vs Jquery $(document).ready()?
...t is both a plugin and a module. If you include it in the the requirements array w/ a trailing ! your module won't execute until it's "safe" to interact w/ the DOM:
define(['domReady!'], function () {
console.info('The DOM is ready before I happen');
});
Note that loading and executing are di...
selecting unique values from a column
... Common use case is to "stream" data from database into multidimensional array in PHP; so your PHP process simply wastes memory with data you might not need. For only some datasets this is negligible, but when handling thousands of rows, this could make a difference.
– rabudd...
POST JSON to API using Rails and HTTParty
... Thanks! This worked great! Question, though: how would you include a JSON array?
– Ruben Martinez Jr.
Aug 13 '14 at 19:02
1
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Good or bad practice? Initializing objects in getter
...ider all optimizations. For instance, in the .NET classes you will see bit arrays used for Boolean class variables throughout the code to reduce memory consumption and memory fragmentation, just to name two "micro-optimizations".
Regarding User-Interfaces
You are not going to use lazy initialization...
How can I use interface as a C# generic type constraint?
...s a generic type and has a constraint, we check the constraint; if it's an array, we check the element type.
At this point I must add that this will break the fact that by default .NET loads types 'lazy'. By scanning all the types, we force the .NET runtime to load them all. For most programs this ...
Can someone explain the traverse function in Haskell?
...of being traversed via something like a for-loop or recursive function. An array would have a for-loop, a list a while-loop, a tree either something recursive or the combination of a stack with a while-loop; but in functional languages you do not need these cumbersome loop commands: you combine the ...