I am trying to understand the behavior of iterators in Python, particularly when using the copy.copy() and copy.deepcopy() functions. I have the following script: import copy my_list = ["a",...

I bounced into this issue: #24898: MemberwiseClone is missing after upgrade to powershell 7.5.0: class MyClass { [string]$Name [object] CloneProblem() { return $this....

I am fairly new to xslt 3.0 and have a problem that requires it's use. I am very close but my output is printing the text-only copy of the data that I do not want. I have to basically merge the T3 ...

In the book "Implementing Domain Driven Design" of Vaughn Vernon, in the Testing of Value Objects section, the author talks about how we can use just shallow copy instead of deep copy to ...

I am learning shallow v.s. deep copying a list in Python. I learned that there're two ways to create copies that have the original values unchanged and only modify the new values or vice versa. They'...

'a' array wasn't affected. const a = [1,2,3] const b = [...a] // shallow copy b[0] = 9 console.log(a) // [1,2,3] console.log(b) // [9,2,3] results as expected ---------- const a = [{name:"John&...

I have trouble understanding the deep and shallow copy, and how the method .clone() works in Java. Some sources say it creates a shallow copy, others say it's deep. public class Kopie { public ...

In OpenCV, it's possible to create a cv::Mat representing a sub-rectangle of an existing cv::Mat, with cv::Mat::operator() functions. This is made possible by the Mat step parameter which enables non ...

I'm trying to understand the basics of C++ classes and the different forms of copying a class to another one, I made a simple class that use a table as a stack and i created simple function for ...

I am trying to implement an algorithm which requires the use of a second mutable vector (elements are read only) containing a subset of elements of the first vector. That subset is of different order ...

In my state I have a dictionary of a flat object: export interface INodeVisibility { id: string; level: number; isExpanded: boolean; } export type NodeVisibilityDict = { [key: string]: ...

I am currently working on a React project and encountered an interesting issue related to shallow copying objects. In my component, I have a form where I collect data, and I noticed that different ...

In python I have: x = [1,2,3,[4,5,6]] y = x[:] x[3][0] = 9 so now: x = [1,2,3,[9,5,6]] y = [1,2,3,[9,5,6]] but: x[0] = 99 then: x = [99,2,3,[9,5,6]] and: y = [1,2,3,[9,5,6]] how come when I ...

The code below is illustrating my problem : public class TreeMapCopyProblem { private static TreeMap<Integer, SortedSet<Integer>> treeMap1; private static TreeMap<Integer, ...

I have a very simple df, which I'm going to make a shallow copy of. # assign dataframe old_df = pd.DataFrame({'values': [10, 20, 30, 40]}) # shallow copy copy_df = old_df.copy(deep=False) I ...