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Get value of c# dynamic property via string
... I'm getting a 'd.GetType().GetProperty("value2").GetValue(d)' threw an exception of type 'System.Reflection.TargetInvocationException' dynamic {System.Reflection.TargetInvocationException} in the watch window with that..?
– TimDog
Feb 8 '11 at 23:04
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Easily measure elapsed time
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//***C++11 Style:***
#include <chrono>
std::chrono::steady_clock::time_point begin = std::chrono::steady_clock::now();
std::chrono::steady_clock::time_point end = std::chrono::steady_clock::now();
std::cout << "Time difference = " << std::chrono::duration_cast<std::c...
How to get current moment in ISO 8601 format with date, hour, and minute?
...ad safe.
ZonedDateTime.now( ZoneOffset.UTC ).format( DateTimeFormatter.ISO_INSTANT )
Result: 2015-04-14T11:07:36.639Z
You may be tempted to use lighter Temporal such as Instant or LocalDateTime,
but they lacks formatter support or time zone data.
Only ZonedDateTime works out of the box.
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Change name of folder when cloning from GitHub?
...s...] <repository> [<directory>], so we see that git clone repo_url my_directory should work, as the above answer correctly shows.
– Purplejacket
Sep 26 '19 at 18:46
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Adding a new entry to the PATH variable in ZSH
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Here, add this line to .zshrc:
export PATH=/home/david/pear/bin:$PATH
EDIT: This does work, but ony's answer below is better, as it takes advantage of the structured interface ZSH provides for variables like $PATH. This approach is standard for bash, but ...
What's a simple way to get a text input popup dialog box on an iPhone
... }];
[alert addTextFieldWithConfigurationHandler:^(UITextField * _Nonnull textField) {
// A block for configuring the text field prior to displaying the alert
}];
[alert addAction:defaultAction];
[alert addAction:cancelAction];
[self presentViewController:alert animated:YES completion:...
What is the correct way to get a subarray in Scala?
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An example of extracting specific columns from a 2D Scala Array (original_array):
import scala.collection.mutable.ArrayBuffer
val sub_array = ArrayBuffer[Array[String]]()
val columns_subset: Seq[String] = Seq("ColumnA", "ColumnB", "ColumnC")
val columns_original = original_array(0)
for (column_...
Copy a file in a sane, safe and efficient way
...<copyfile.h>
int
copyfile(const char *from, const char *to, copyfile_state_t state, copyfile_flags_t flags);
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Get domain name from given url
...ring.length() if there's no subsequent "/"). The remaining, preceding "www(_)*." bit is chopped off. I'm sure there'll be cases where this won't be good enough but it should be good enough in most cases!
Mike Samuel's post above says that the java.net.URI class could do this (and was preferred to t...
How to convert R Markdown to PDF?
...ying an output format to the rend function. E.g.,
render("input.Rmd", "pdf_document")
Command-line:
When I run render from the command-line (e.g., using a makefile), I sometimes have issues with pandoc not being found. Presumably, it is not on the search path.
The following answer explains how to...