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Reduce, fold or scan (Left/Right)?
...rt with the RIGHT element and go backwards (from C to A) we'll notice that now the second argument to our binary operator accumulates the result (the operator is the same, we just switched the argument names to make their roles clear):
def add(x: String, res: String) = {
println(s"op: $x + $res ...
Imply bit with constant 1 or 0 in SQL Server
... To make the code more readable we standardised our SQL and now use declared bit variables when we need to express true/false.
– Damien McGivern
Feb 22 '11 at 15:54
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C++: How to round a double to an int? [duplicate]
....
float x = 55; // stored as 54.999999...
x = x + 0.5 - (x<0); // x is now 55.499999...
int y = (int)x; // truncated to 55
C++11 also introduces std::round, which likely uses a similar logic of adding 0.5 to |x| under the hood (see the link if interested) but is obviously more robust.
A follo...
How to get element by class name? [duplicate]
... first one use:
document.getElementsByClassName('class_name')[0]
UPDATE
Now you can use:
document.querySelector(".class_name") to get the first element with the class_name CSS class (null will be returned if non of the elements on the page has this class name)
or document.querySelectorAll(".cla...
How to compare variables to undefined, if I don’t know whether they exist? [duplicate]
...iable and if it’s undefined , you can check variable == undefined ; I know that, but how can you compare a value that you don’t know yet if it’s in memory?
...
What does O(log n) mean exactly?
...propriate spot in a new, empty phone book.
For the below examples, we're now at the printer's office. Phone books are waiting to be mailed to each resident or business, and there's a sticker on each phone book identifying where it should be mailed to. Every person or business gets one phone book.
...
How do I get the calling method name and type using reflection? [duplicate]
...var type = method.DeclaringType;
var name = method.Name;
}
}
Now let's say you have another class like this:
public class Caller
{
public void Call()
{
SomeClass s = new SomeClass();
s.SomeMethod();
}
}
name will be "Call" and type will be "Caller"
UPDATE Two y...
Log all requests from the python-requests module
...
Sure, I am debugging right now with wireshark, but I have a problem: if I do http, I see the full packet contents, but Linkedin returns 401, which is expected, since Linkedin tells to use https. But with https it is not working either, and I can not de...
How to test if parameters exist in rails
...I, but I'm sure that's safe enough. I've been calling params.to_h.key? for now.
– stephen.hanson
Nov 9 '16 at 19:38
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How do I get an empty array of any size in python?
...swering the question for readers in the future, not just the person asking now. Please edit your answer to add explanations and give an indication of what limitations and assumptions apply.
– Xnero
Jun 24 at 12:01
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