There some similar questions but the answers use deprecated methods.

My solution which is similar to them but with modern methods:

func copyObject<T: UIView>() throws -> T? {
        let data = try NSKeyedArchiver.archivedData(withRootObject:self, requiringSecureCoding:false)
        return try NSKeyedUnarchiver.unarchiveTopLevelObjectWithData(data) as? T
    }

The problem is it doesn't work fully (and it seems the other questions-answers have the same problem) - one of subviews has corner radius which is not copied. How to solve this issue?

Here is the code I have implementing a virtual constructor via a clone method.

#include <iostream>
#include <typeinfo>
using namespace std;

class Dog{
public:
    virtual Dog* clone() = 0;
};

class YellowDog : public Dog {
public:
    virtual YellowDog* clone() { return (new YellowDog(*this)); }
    int i = 4;
};

void foo(Dog* d) {
    Dog* c = d->clone();
    cout << typeid(*c).name() << endl;
    // I check explicitly that the object pointed to is indeed of type YellowDog.
    
    // (*c).i; // this produces an error "Class Dog has no member i"



}

int main(){

    YellowDog d;
    foo(&d);


}
 

Why is that error produced (that I commented out)? I thought the whole point of this was that we will copy the correct object so wouldn't the dereferenced pointer , *c, be of type YellowDog (confirmed by typeid(c).name()) and so it could access public data member i of type int?

I'm not asking how do I know who cloned my repo. I'm asking how does GitHub know that I'm the one who cloned the repo, and not some other account.

If someone else cloned my repo, how does git know that's a different user and not me? Could someone clone my repo, and contribute/push directly to it from their account? Could someone else clone my repo, and pretend to be me and contribute/push to it?

I have an object x. I'd like to copy it as object y, such that changes to y do not modify x. I realized that copying objects derived from built-in JavaScript objects will result in extra, unwanted properties. This isn't a problem, since I'm copying one of my own literal-constructed objects.

How do I correctly clone a JavaScript object?

I'm doing the Git and Github google course on coursera, and I'm new at this. I already have a Github account, but never used it from the terminal.

Following the instructions of the course, I'm trying to clone a repository I have in my github account to my Git in the Ubuntu terminal. Following the command:

git clone https://github.com/username/repositoryname.git Cloning into 'repositoryname'... fatal: unable to access 'https://github.com/username/repositoryname: Could not resolve host: github.com

I have a user in Git that is the same as in Github, and I'm using the email address that github provides to me to use in Git.

The teacher places the git clone command and the https address, then it asks for username and password, and he directly gets it done ok. but I get an error.

What is wrong here and how can I fix it?

Note: Mi pc is Windows OS, working on Ubuntu for windows, and if I use gitbash I get the same error.