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Java: Class.this
...is example should explain it:
public class LocalScreen {
public void method() {
new Runnable() {
public void run() {
// Prints "An anonymous Runnable"
System.out.println(this.toString());
// Prints...
What are the big improvements between guava and apache equivalent libraries?
We currently use apache collections, string utils, etc. I need to decide if we should switch from the apache foundations implementation.
...
What is the fastest integer division supporting division by zero no matter what the result is?
...
Inspired by some of the comments I got rid of the branch on my Pentium and gcc compiler using
int f (int x, int y)
{
y += y == 0;
return x/y;
}
The compiler basically recognizes that it can use a condition flag of the test in the addition.
As pe...
Why does pthread_cond_wait have spurious wakeups?
...
The following explanation is given by David R. Butenhof in "Programming with POSIX Threads" (p. 80):
Spurious wakeups may sound strange, but on some multiprocessor systems, making condition wakeup completely predictable might substantially slow all condition var...
Why are C# 4 optional parameters defined on interface not enforced on implementing class?
...face as you describe, and a hundred classes that implement it. Then you decide to make one of the parameters of one of the interface's methods optional. Are you suggesting that the right thing to do is for the compiler to force the developer to find every implementation of that interface method, and...
Android set height and width of Custom view programmatically
...e programatically like that :
graphView.setLayoutParams(new LayoutParams(width, height));
This is fine if you know the exact size of the view. However, if you want a more flexible approach, you can override the onMeasure() method to measure the view more precisely depending on the space available...
What's the difference between == and .equals in Scala?
... answered Oct 6 '11 at 22:33
Didier DupontDidier Dupont
28.1k66 gold badges6666 silver badges8787 bronze badges
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When should I use jQuery deferred's “then” method and when should I use the “pipe” method?
...values beforehand so that you don't have to do this in both callbacks individually? Yes! And that's what we can use .pipe() for:
deferred.pipe(function(result) {
// result = [{value: 2}, {value: 4}, {value: 6}]
var values = [];
for(var i = 0, len = result.length; i < len; i++) {
...
How do you know when to use fold-left and when to use fold-right?
...thmetic operators (most operators) are left-associative, so foldl is more widespread. But in the other cases, infix notation + parentheses is quite useful.
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Install dependencies globally and locally using package.json
...your devDependencies (--save-dev) and then run the binary from anywhere inside your project:
"$(npm bin)/<executable_name>" <arguments>...
In your case:
"$(npm bin)"/node.io --help
This engineer provided an npm-exec alias as a shortcut. This engineer uses a shellscript called env....