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What is a “thread” (really)?
... includes the Instruction Pointer (aka Program Counter), it controls what executes in what order. It also includes the Stack Pointer, which had better point to a unique area of memory for each thread or else they will interfere with each other.
Threads are the software unit affected by control flo...
What is the difference between named and positional parameters in Dart?
...A parameter wrapped by [ ] is a positional optional parameter. Here is an example:
getHttpUrl(String server, String path, [int port=80]) {
// ...
}
In the above code, port is optional and has a default value of 80.
You can call getHttpUrl with or without the third parameter.
getHttpUrl('exa...
What kind of Garbage Collection does Go use?
...(parallel implementation)
non-generational
non-compacting
mostly precise (except stack frames)
stop-the-world
bitmap-based representation
zero-cost when the program is not allocating memory (that is: shuffling pointers around is as fast as in C, although in practice this runs somewhat slower than C ...
How do I set a cookie on HttpClient's HttpRequestMessage
...a custom cookie value for the request:
var baseAddress = new Uri("http://example.com");
var cookieContainer = new CookieContainer();
using (var handler = new HttpClientHandler() { CookieContainer = cookieContainer })
using (var client = new HttpClient(handler) { BaseAddress = baseAddress })
{
v...
How to get the raw value an field?
...t and do something with it, you'd have to rely on the old tried and true text input field and parse the content yourself.
The W3 also has the same specs and adds:
User agents must not allow the user to set the value to a non-empty
string that is not a valid floating-point number.
...
What do pty and tty mean?
...tty" originally meant "teletype" and "pty" means "pseudo-teletype".
In UNIX, /dev/tty* is any device that acts like a "teletype", ie, a terminal. (Called teletype because that's what we had for terminals in those benighted days.)
A pty is a pseudotty, a device entry that acts like a terminal to t...
What is the boundary in multipart/form-data?
...ollowing data to the web server:
name = John
age = 12
using application/x-www-form-urlencoded would be like this:
name=John&age=12
As you can see, the server knows that parameters are separated by an ampersand &. If & is required for a parameter value then it must be encoded.
So h...
What are the differences between poll and select?
I am referring to the POSIX standard select and poll system C API calls.
3 Answers
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In Matlab, when is it optimal to use bsxfun?
...t of good answers to Matlab questions on SO frequently use the function bsxfun . Why?
5 Answers
...
Sleep until a specific time/date
...n to nanoseconds (effectively more around milliseconds) use e.g. this syntax:
current_epoch=$(date +%s.%N)
target_epoch=$(date -d "20:25:00.12345" +%s.%N)
sleep_seconds=$(echo "$target_epoch - $current_epoch"|bc)
sleep $sleep_seconds
Note that macOS / OS X does not support precision below secon...