subtract the the integer number before the first argument from an url in swift

To subtract the integer number before the first argument from a URL in Swift, you first need to extract the integer number and the first argument from the URL string. The following code demonstrates how to do this using substrings and splitting the URL string:

main.swift
let urlString = "https://example.com/1234/argument"
let url = URL(string: urlString)!

// Get the path component of the URL
let path = url.path

// Extract the integer number and the first argument from the path
let pathComponents = path.split(separator: "/")
let integerNumber = Int(pathComponents[1])!
let firstArgument = String(pathComponents[2])

// Subtract the integer number from the first argument
let result = Int(firstArgument)! - integerNumber
print(result)
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In this code, we first create a URL object from the URL string. We then extract the path component of the URL using the path property. We split the path component using the / character as a separator, and extract the integer number and the first argument from the resulting array of components. Finally, we subtract the integer number from the first argument and print the result to the console.