JSON Syntax

<!DOCTYPE html>
<html>
<body>

<h2>Modify a JavaScript Object</h2>
<p id="demo"></p>

<script>
const myObj = {name:"Ahmed", age:45, city:"New York"};
myObj["name"] = "Mohamed";
document.getElementById("demo").innerHTML = myObj.name;
</script>

</body>
</html>