문자열 다루기 #2 (핸드폰 뒤 4자리만 보이기) – javascript 예제

ex1)

function hide_numbers(s){
  var result = ""
  //함수를 완성해주세요
  var hide_num = s.length - 4;
  var result = s.substr(hide_num);
  for(var i = 0; i<hide_num; i++){
  	result = '*'+result;
  }
  return result;
}

 

 

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