javascript - Encapsulate the repeated parts of these two functions into one function?

Question

{Code...} The two functions are very similar (repeated). How to encapsulate the repeated parts of these two functions into one function?

某草草 · Answer

There is a native method without encapsulation

array.map(item=>item+3)
array.map(item=>encodeURIComponent(item))

ringa_lee · Answer

The map method that comes with JS has encapsulated your needs

巴扎黑 · Answer

可以考虑给第二个参数来区分
function repeatControl(array,param){
 for(var i = 0; i < array.length; i++){
    if(param=='addThree'){
       array[i] + = 3;
    }else{
       array[i] = encodeURIComponent(array[i]);
    }
 }
  return array;
}