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4.   How can you create and access an array in JavaScript? Explain with a code example.
                  Ans.  In JavaScript, an array is a special type of object used to store multiple values in a single variable. It can hold
                       elements of different data types like numbers, strings, and objects.
                       You can create an array in JavaScript using:
                       Array Literal
                       Array Constructor
                       For example:
                      const fruits = ["Apple", "Banana", "Mango", "Orange"];
                      document.write(fruits);
                       You can also create an array using Array() constructor.
                      const numbers = new Array(10, 20, 30, 40);
                      document.write(numbers);
                     5.  What is an object? Explain two ways of declaring an object.
                  Ans.  Consider an object in JavaScript as a list of items, each of which is a property or method that is kept as a key-value
                       pair in memory.
                       You can define and create your own objects in any of the following ways:
                         Using an object literal.
                          The following example creates a new JavaScript object with three properties:

                          const student = {Name : "Rashi", age : 35, Address  : "Ajmer" };
                         Using the keyword new.
                          The following example creates a new JavaScript object using new Object(), and then adds 3 properties:

                          const student = new Object();
                          student.Name = "Rashi";
                          student.age = 35;
                           student.Address = "Ajmer";
                     6.  Explain the following with respect to Java script using suitable example.
                      i.  Event handler                                 ii.  Objects
                  Ans.  i.   Event Handler: The "event handler" is a command that is used to specify actions in response to an event. Eg:
                         onLoad, onMouseover etc.
                       ii.  Objects: JavaScript objects are simply collections of name-value pairs. The "name" part is a JavaScript string,
                         while  the  value  can  be  any  JavaScript  value  including  more  objects.  Objects  are  a  way  of  organizing  the
                         variables. The different screen elements such as Web pages, forms, text boxes, images, and buttons are treated
                         as objects.
                     7.  Write a JavaScript program to check if a number is even or odd.
                  Ans.  <!DOCTYPE HTML>
                      <HTML>
                      <HEAD>
                      <TITLE>Even or Odd Checker</TITLE>
                      <SCRIPT>
                      function checkEvenOdd() {
                      var num = document.getElementById("number").value;
                      var result = (num % 2 === 0) ? "Even" : "Odd";
                       document.getElementById("output").innerHTML = "The number " + num + " is " + result;

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