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Why does Math.Floor(Double) return a value of type Double?
...er is outside the range of long - so what would you expect to happen?
Typically you know that the value will actually be within the range of int or long, so you cast it:
double d = 1000.1234d;
int x = (int) Math.Floor(d);
but the onus for that cast is on the developer, not on Math.Floor itself. ...
Timeout command on Mac OS X?
...
You can use
brew install coreutils
And then whenever you need timeout, use
gtimeout
..instead. To explain why here's a snippet from the Homebrew Caveats section:
Caveats
All commands have been installed with the p...
Reverting part of a commit with git
...en I commit back to CVS multiple git commits are rolled into one. In this case I would love to single out the original git commit, but that is impossible.
...
Concatenate two string literals
...reading Accelerated C++ by Koenig. He writes that "the new idea is that we can use + to concatenate a string and a string literal - or, for that matter, two strings (but not two string literals).
...
When should I use require() and when to use define()?
...
With define you register a module in require.js that you can then depend on in other module definitions or require statements.
With require you "just" load/use a module or javascript file that can be loaded by require.js.
For examples have a look at the documentation
My rule of th...
Using Rails 3.1 assets pipeline to conditionally use certain css
...t much simpler than your solution, but this solution allows you to automatically add new stylesheets without having to re-edit the whole structure again.
What you want to do is use separate manifest files to break things up. First you have to re-organize your app/assets/stylesheets folder:
app/ass...
How to exclude this / current / dot folder from find “type d”
can be used to find all directories below some start point. But it returns the current directory ( . ) too, which may be undesired. How can it be excluded?
...
Why is it faster to check if dictionary contains the key, rather than catch the exception in case it
...
On the one hand, throwing exceptions is inherently expensive, because the stack has to be unwound etc.
On the other hand, accessing a value in a dictionary by its key is cheap, because it's a fast, O(1) operation.
BTW: The correct way to do this is to use TryGetValue
obj item;
if(!dict....
Is there a way to cause git-reflog to show a date alongside each entry?
...
Per the man page, you can use git log options, e.g.,
git reflog --pretty=short
git reflog --date=iso
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How is attr_accessible used in Rails 4?
...e in the controller. This is an example:
class PeopleController < ApplicationController
def create
Person.create(person_params)
end
private
def person_params
params.require(:person).permit(:name, :age)
end
end
No need to set attr_accessible in the model anymore.
Dealing wi...