New Accumulator

by fredericklim

HTML

<p id="result"></p>

JavaScript

function Accumulator(n) {
   this.value = n;
   this.read = function() {
      this.value += +prompt("Value", 0);
      return this;
   }
}

let accumulator = new Accumulator(1);

//accumulator.read();
accumulator.read().read();

document.querySelector("#result").innerHTML = accumulator.value;