JSFiddle - React, Tailwind, and code Playground

HTML

<script style="text/javascript">
    function numbers(){
    var numbers = 0;
    var outMessage = "";
    var numbersArray = new Array(numbers);

    do{
        numbers = prompt('enter 0 to cancel', 0);
        if(numbers != 0) {
        	numbersArray.push(numbers);
        } else {
        		break;
        }
    }while(!(isNaN(numbers)));






    var maxNum = Math.max.apply(null, numbersArray);
    alert(maxNum);
    document.getElementById('result').innerHTML = maxNum;

    }
</script>
<body>
<p>Numbers Exercise</p>
<p id="numbers"></p>
<input type="button" value="Start" onClick = "numbers();">

<label id='result' />