javascript - 用另一个函数修改一个函数的私有(private)变量

Question

给定以下函数:

function countdown() {
  var result = "";

  // do something with the result variable

  return result;
}

在调用倒计时函数之前，如何从另一个函数内更新 result 变量？

function something(){
   // update private variable "result"
}

Answer 1

function countdown(modifiedResult) {
  var result = "";

  // do something with the result variable
  result = modifiedResult;

  return result;
}


function something(modifiedResult){
  // update private variable "result"
   var updatedResult = countdown(modifiedResult);
   alert(updatedResult);
}
something("I am updated value");