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How to get a random number in Ruby
...ed a random float, just call rand with no arguments.
As Marc-André Lafortune mentions in his answer below (go upvote it), Ruby 1.9.2 has its own Random class (that Marc-André himself helped to debug, hence the 1.9.2 target for that feature).
For instance, in this game where you need to guess ...
Difference between setTimeout with and without quotes and parentheses
...t at W3Schools , I noticed a strange figure which I didn’t run into before. They are using double quotes and then call the function.
...
HttpClient.GetAsync(…) never returns when using await/async
...le a request at a time. You can do some parallel processing if necessary (borrowing additional threads from the thread pool), but only one thread would have the request context (the additional threads do not have the request context).
This is managed by the ASP.NET SynchronizationContext.
By defau...
Array.Add vs +=
...g array. An array is a collection of fixed size, so you will receive an error because it can't be extended.
$array += $element creates a new array with the same elements as old one + the new item, and this new larger array replaces the old one in the $array-variable
You can use the += operator...
Why does this (null || !TryParse) conditional result in “use of unassigned local variable”?
...as Quartermeister demonstrates; dynamic might implement a weird true operator which might cause y to never be initialized.
Here's a minimal repro:
class Program
{
static bool M(out int x)
{
x = 123;
return true;
}
static int N(dynamic d)
{
int y;
...
What is the difference between the different methods of putting JavaScript code in an ?
...can't have a simple HTML page that all your JavaScript links can point to for their href section in the event that someone happens to turn off JavaScript after logging in. I would highly encourage you to still allow this fallback mechanism. Something like this will adhere to "best practices" and a...
What's the difference between unit tests and integration tests? [duplicate]
...nds on what the programmer considers to be useful. The tests are intended for the use of the programmer, they are not directly useful to anybody else, though, if they do their job, testers and users downstream should benefit from seeing fewer bugs.
Part of being a unit test is the implication that...
Installing a local module using npm?
...d module repo, I want to install it locally, not globally in another directory?
7 Answers
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Significance of bool IsReusable in http handler interface
...
The normal entry point for a handler is the ProcessRequest method. However you may have code in the class constructor which puts together some instance values which are expensive to build.
If you specify Reusable to be true the ...
Python 3.x rounding behavior
...
Python 3's way (called "round half to even" or "banker's rounding") is considered the standard rounding method these days, though some language implementations aren't on the bus yet.
The simple "always round 0.5 up" technique results in a slight bias toward the higher ...