$ 0 SwiftUI inside what is the meaning How (2020 Tutorial)

0, 2 and other names to refer to the value of the parameter closure.

Code

import UIKit

let name =  [1,2,3,9,8,6]
let reverseName =  name.sorted(by:{$0>$1})
let reverseName2 =  name.sorted(by:{$1>$0})
print(name)
print(reverseName)
print(reverseName2)

effect

SwiftUI Inside $ 0 What does this mean How

references

• https://www.quora.com/What-does-0-mean-in-Swift

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