Shortest code to read TChecklistBox checked Items [closed] - delphi

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what is the shortest code to copy all checked items from a TChecklistBox into a TStringlist ?
( for a TListbox I can you the assign function to add and extract a TStringlist with data)

Using plain vanilla Delphi (i.e. without any third party libraries) you just write a for loop:
StringList.Clear;
for i := 0 to CheckListBox.Items.Count-1 do
if CheckListBox.Checked[i] then
StringList.Add(CheckListBox.Items[i]);

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tfidf.idf_ what is meaning of this in the code [closed]

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tfidf = TfidfVectorizer(lowercase=False, )
tfidf.fit_transform(questions)
dict key:word and value:tf-idf score
word2tfidf = dict(zip(tfidf.get_feature_names(), tfidf.idf_))
https://scikit-learn.org/stable/modules/generated/sklearn.feature_extraction.text.TfidfVectorizer.html
idf_: array of shape (n_features,)
The inverse document frequency (IDF) vector; only defined if use_idf is True.

Global Variable Not Update ( Swift ) [closed]

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I have a global variable, but when I give the value of the variable does not change when I
run in viewDidload, this is my code :
(https://pastebin.com/7QbBjLNC)
The data is being fetched asynchronously and the print statement is getting executed before the response is received. print the data after you assign value to self.jumlahStok

Why Opencv wants int32? [closed]

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I got an error when I ran cv2.fillPoly(color_warp, pts, (0,255, 0)) and then recognized pts needed to be int32.
But why does it need to be int32 ?
pts holds an array of array of points on an image. An image is a matrix of Scalars. It is indiced by (X, Y) values which can be stored quite adequately in int32.

Why is everything a tuple in swift? [closed]

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So I found out that any variable or constant in swift is a tuple. For example, variable x below is a tuple
var x = 15
and following statement is valid and evaluates to value of x as the first element of tuple
x.0.0.0.0.0.0.0.0.0.0.0 // outputs 15
I'm wondering why the language has been built to accommodate this. Any known (or outworldly) use case?
I don't know can it be the right answer, but it gives some information and shows that it's a known thing. Look this 2 sections:
Special: The 1-Tuple
Bonus Track: Tuples All the Way Down

F# Condition Statement [closed]

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How to write something
if !inBoundary then do
printfn "no it's not within the boundary"
You can use the not built-in function (and omit the do keyword after then):
let inBoundary = false
if not inBoundary then
printfn "no it's not within the boundary"

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