Assign parameters to existing variable [closed]

Question

In JS how can I use this pattern but implement with something less redundant?

let apple
const myFun = (theApple, orange) => {
  apple = theApple
  //various stuff with apple and orange
  //(apple now avail to rest of script)
}

ie- immediately apply an incoming parameter to an existing variable (which was defined in a scope above)

just inventing syntax here but something like the following would be less redundant:

let apple
const myFun = (^apple, orange) => {
  //(apple is now assigned and avail
  //to rest of script)
}

but if there are any real solutions/workarounds I would be interested to know.

Answer 1

let apple
const myFun = (theApple, orange) => {
  apple = theApple
  //various stuff with apple and orange
  //(apple avail to rest of script)
}
myFun(theAppleValue, orangeValue)
console.log(apple)