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How can I load storyboard programmatically from class?
...the Attributes inspector and set the view controller's Identifier. You can then present that view controller using the following code.
UIStoryboard *sb = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
UIViewController *vc = [sb instantiateViewControllerWithIdentifier:@"myViewContro...
Swift make method parameter mutable?
...re is virtually no cost. If x is array, struct, or object that is mutated, then a copy almost certainly needs to be performed (unless the optimizer can analyze it inline and alias it).
– wcochran
Apr 14 '17 at 16:00
...
How does SIGINT relate to the other termination signals such as SIGTERM, SIGQUIT and SIGKILL?
...ault reboot command sends a SIGTERM to processes, sleeps for a second, and then sends SIGKILL. This seems to be a common convention across different distros.
When you shutdown a BusyBox system with:
reboot
it sends a signal to the init process.
Then, the init signal handler ends up calling:
st...
How do you do Impersonation in .NET?
... these two ideas pair together frequently. I will describe them both, and then explain how to use my SimpleImpersonation library, which uses them internally.
Impersonation
The APIs for impersonation are provided in .NET via the System.Security.Principal namespace:
Newer code (.NET 4.6+, .NET Co...
Android AsyncTask threads limits?
...ases. The keep-alive timeout was 10 seconds before 2.3, and 1 second since then.
With all of this in mind, it now becomes clear why the AsyncTask will only appear to execute 5/6 of your tasks. The 6th task is being queued up until one of the other tasks complete. This is a very good reason why you ...
Execute JavaScript code stored as a string
... a text block, pass it to my function, and execute it. The catch block can then insert error messages from the JavaScript engine into a DOM element and display any errors in the code. If someone wants the function I wrote, then once I've tidied it up, I can post it here.
– Davi...
node.js remove file
...t's blocked by another process - or, I check it exists, and it's fine, but then another process randomly blocks it before I'm able to delete. How can I block straight after checking? then wouldnt I not be able to delete as its blocked
– user6765872
Oct 11 '16 a...
Constructing pandas DataFrame from values in variables gives “ValueError: If using all scalar values
... can claim that if only one dictionary is given (without a wrapping list), then assume index=0, but that can lead to accidental misuse (thinking that a single dictionary can somehow create a multi-row dataframe)
– Ori
Nov 10 '18 at 15:10
...
How do I run Asynchronous callbacks in Playground
...yground
XCPlaygroundPage.currentPage.needsIndefiniteExecution = true
…then indicate when execution has finished with:
XCPlaygroundPage.currentPage.finishExecution()
For example:
import Foundation
import XCPlayground
XCPlaygroundPage.currentPage.needsIndefiniteExecution = true
NSURLSession...
What is meant by immutable?
...ed! If the String object were mutable (the characters could change later) then you would have to copy all the characters, otherwise changes to characters in the substring would be reflected in the other string later.
Concurrency: If the internal structure of an immutable object is valid, it will a...