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How to pass const value from one react js file to another?

I am a little new on react. How can I pass a variable with its value from one react js file to another? File A.js: const [value, setValue] = useState(35) Fil

Communicate between two pages / tabs

I'm wanting a JavaScript file to control two HTML files simultaneously. <!DOCTYPE html> <html> <head> <title>tryAgainPage1</title&g

Pygame: Efficient way to call draw function in for loops

Here's my problem, I want to draw a grid with pygame so I have this loop in which self.data changes at every time step def draw(self, surface): for

anguar passing value from input to model

I am making a put request. How can i pass value from input form to my model to pass value that i am filling up - before send form. everything what i have tri

Call function with a parameter from another function

I have a function that repeatedly calls another function. The second function has a bool parameter that changes the way it behaves, so when I call the first fun

Array of arrays, get first element and length. Javascript [closed]

Here is picture of my data I have: Im trying to get array of objects, which will look like this: [{ length: 2, item: { imgSour

Check if file exists - C programming

I've had trouble trying to create this function that takes users input and checks if the file exists or not. I keep on getting warning messages (format specifie