How to get history of previous three clicks?

var myFunction = function() {
  if (typeof(Storage) !== "undefined") {
    var e = this.value;
    var current_value = localStorage.getItem("check");
    if (current_value == "null") {
      current_value = e;
    } else {
      current_value = current_value + "\n" + e;
    }
    localStorage.setItem("check", current_value);
    console.log(localStorage.getItem("check"));
  } else {
    console.log('Cannot access local storage.');
  }
};
var classname = document.getElementsByClassName("click_button")
for (var i = 0; i < classname.length; i++) {
  classname[i].addEventListener("click", myFunction);
}

function clickCount() {
  if (typeof(Storage) !== "undefined") {
    alert(localStorage.getItem("check"));
  } else {
    alert("Cannot access local Storage");
  }
}

<button type="button" id="first_button" class="click_button">first_button</button>
<button type="button" id="second_button" class="click_button">second_button</button>
<button type="button" id="third_button" class="click_button">third_button</button>

<button onclick="clickCount()" type="button" id="history_button">History_button</button>