eval | Phaisarn

Evaluate/Execute JavaScript code/expressions

<!DOCTYPE html>
<html>

<body>
    <p id="demo"></p>

    <script>
        var x = 10;
        var y = 20;
        var a = eval("x * y") + "<br>";
        var b = eval("2 + 2") + "<br>";
        var c = eval("x + 17") + "<br>";

        var res = a + b + c;
        document.getElementById("demo").innerHTML = res;
    </script>

</body>

</html>

Link JavaScript eval() Function