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Understanding the Event Loop
...run something asynchronously is by invoking one of the async functions provided by the node core library. Even if you are using an npm package that defines it's own API, in order to yield the event loop, eventually that npm package's code will call one of node core's async functions and that's when ...
Mercurial move changes to a new branch
... Mark's answer, moving around already pushed changesets generally is a bad idea, unless you work in a small team where you are able to communicate and enforce your history manipulation.
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Resetting a setTimeout
... @Cort3z that's because window.setTimeout returns a number (the timer's ID) and not a "timeout object".
– Dan O
Apr 30 '15 at 15:59
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Guaranteed lifetime of temporary in C++?
Does C++ provide a guarantee for the lifetime of a temporary variable that is created within a function call but not used as a parameter? Here's an example class:
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How is Math.Pow() implemented in .NET Framework?
... for calculating a b (say a = 2 and b = 50 ). To start things up, I decided to take a look at the implementation of Math.Pow() function. But in .NET Reflector , all I found was this:
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Should I pass an std::function by const-reference?
... you have a function called "run this in the UI thread".
std::future<void> run_in_ui_thread( std::function<void()> )
which runs some code in the "ui" thread, then signals the future when done. (Useful in UI frameworks where the UI thread is where you are supposed to mess with UI elem...
Understanding NSRunLoop
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A run loop is an abstraction that (among other things) provides a mechanism to handle system input sources (sockets, ports, files, keyboard, mouse, timers, etc).
Each NSThread has its own run loop, which can be accessed via the currentRunLoop method.
In general, you do not need to ...
How to name variables on the fly?
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Is there any reason why you didn't use paste0?
– BroVic
Jul 5 '18 at 15:11
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Abort makefile if variable not set
...ndef conditional, so that a variable defined to an empty value is also considered "undefined". But this is only true for simple variables and explicitly empty recursive variables:
# ifndef and check_defined consider these UNDEFINED:
explicitly_empty =
simple_empty := $(explicitly_empty)
# ifndef a...
How to fix “Headers already sent” error in PHP
...TP header are:
header / header_remove
session_start / session_regenerate_id
setcookie / setrawcookie
Output can be:
Unintentional:
Whitespace before <?php or after ?>
The UTF-8 Byte Order Mark specifically
Previous error messages or notices
Intentional:
print, echo and other fu...