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emacs/elisp: What is the hash (pound, number sign, octothorp) symbol used for?
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Dual emission of constructor symbols
... | v
prefix | nested | `Thing` | `foo`| end nested | parameters: `void`
You can read the constructor names similarly, as below. Notice how the constructor "name" isn't given, but instead a C clause:
_Z | N | 5Thing | C1 | E | i
prefix | nested | `Thing` | Construc...
Is HttpClient safe to use concurrently?
...: github.com/dotnet/corefx/issues/11224.
– Ohad Schneider
Jul 6 '17 at 21:52
1
@OhadSchneider If ...
How to concatenate two IEnumerable into a new IEnumerable?
... first or second be null you would receive a ArgumentNullException. To avoid this & treat nulls as you would an empty set, use the null coalescing operator like so:
var together = (first ?? Enumerable.Empty<string>()).Concat(second ?? Enumerable.Empty<string>()); //amending `<st...
How to include external Python code to use in other files?
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#include in .h or .c / .cpp?
...han once per .c or .cpp file. Each .c or .cpp file is generally build individually though, which means a .h will be re-parsed for each .c or .cpp file you compile.
– Brendan Long
Feb 9 '14 at 0:29
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What is the meaning of erb?
...ftware to use it.
The original article contains more detail and a short guide to using ERB. You can also read the official docs.
Note: the quoted block above was previously posted as an answer by another user without linking to An Introduction to ERB Templating or acknowledging that it was not tha...
Multiline syntax for piping a heredoc; is this portable?
...y */
So a pipe symbol can be followed by an end-of-line and still be considered part of a pipeline.
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Using [UIColor colorWithRed:green:blue:alpha:] doesn't work with UITableView seperatorColor?
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You need to divide by 255.0
Because I hardly ever use values between 1.0 and 0.0, I created a very simple UIColor category that does the messy looking division by itself: (from http://github.com/Jon889/JPGeneral)
//.h file
@interface UICo...
How can I open Windows Explorer to a certain directory from within a WPF app?
... you'd like a method to run programs/open files and/or folders:
private void StartProcess(string path)
{
ProcessStartInfo StartInformation = new ProcessStartInfo();
StartInformation.FileName = path;
Process process = Process.Start(StartInformation);
process.EnableRaisingEvents = ...