javascript/index.html at master · borkarsaish65/javascript · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Personal Expense</title>
    <style>
    body {
    display:flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;


   }
    </style>

</head>
<body>
  <h0 id="headingTotal"> </h0>
    <button id="btnAddExpense">Click Here! </button>
    <input id="inputAmount" type="text"> </input>
    <script>

           //get the heading element
           const headingE1= document.querySelector("#headingTotal");


           //init value of expense at 0
           let totalExpense = 0;
           //Set the heading Element to totalExpense
           headingE1.textContent = totalExpense;


            //Get the button element
            const element = document.querySelector("#btnAddExpense")

            //listen to click event
            element.addEventListener("click",addExpenseTotal, false);

            //take a number which starts from zero
            let counter =0;
            function addExpenseTotal() {

              // read value from inputAmount
            const inputelement = document.querySelector("#inputAmount");
            const textamount = inputelement.value;
            console.log({textamount});

            //convert it to number
            const expense = parseInt(textamount,10);
            console.log({expense});

            totalExpense = totalExpense + expense;

            //set the heeading element to expense
              headingE1.textContent = totalExpense;

            }


            // Function to incement the number
            /*function counterIncrement()
            {
                    //Every click increment a number
            counter = counter + 1;
            console.log(counter);
            } */

            </script>
</body>
</html>