What does a Node object represent?

What specifies the kind of event occurred?

  The script tag must be placed in __________ 

Which object is the main entry point to all client-side JavaScript features and APIs?

Which of the following jQuery functions is used for parsing JSON text?

What is the output of the following code?
function aaa() {

   return

   {

       test: 1

   };

}

alert(typeof aaa());

What will be the output of the following JavaScript code?

const object1 = {};  

Object.defineProperties(object1,

{  

   property1: 

        {  

             value: 10 

        }  

 });  

Find the output of the following code:

function b(num1, num2) {

var num3 = num1 - num2;

var num4 = num3++;

var num5 = num4;

document.write(num3);

}

var num1 = 30;

var num2 = 20;

b(num1, num2);

What will happen if we use the reverse() and join() methods simultaneously?

<button onclick="first_function()">Try it</button>
<p id="demo">one</p>
<script>
function first_function()
{
  var onlystring = document.getElementById("demo").innerHTML;
  var onlytext = onlystring.replace("one","two");
  document.getElementById("demo").innerHTML = onlytext;
}
</script>