1)Programs in Annonymous and IIFE function.js

//a)Print odd numbers in an array:
    //anonymous function
         let arr1=[1,2,3,4,5,6,7,8,9,10]
         let oddnum=function(arr){
             let odd_arr=[];
             for(let num of arr){
                (num%2!==0)? odd_arr.push(num) : num;                    //ternary operator to split the odd number.
                }
             return odd_arr
            }
         console.log(`odd numbers in an array : [${oddnum(arr1)}]`)      //calling and printing the result in the terminal/conosle.    

    //IIEF function
         let arr11=[1,2,3,4,5,6,7,8,9,10]
         console.log(`The array odd number :[${
         (function(arr){
            let odd_arr=[];
            for(let num of arr){                                         //for of loop to loop the value value till end.
                (num%2!==0)? odd_arr.push(num) : num;                    //ternary operator to optimize the code.
            }
            return odd_arr
         })(arr11)}]`);           
    //The above 2 program result is ====> odd numbers in an array : [1,3,5,7,9]
   
//b)convert all the string to the title caps in string array.
    //Anonymous function :
         let str_arr=["deepak","kumar","ramesh","kishore"]
         let title_cap=function(arr){
         title_capped_arr=[];
             for (let index in arr){
                 title_capped_arr.push(arr[index].charAt(0).toUpperCase()+arr[index].slice(1));     /*this line have push,charAt,toUpperCase,slice method 
                                                                                                      to remove the word at the begining and add at the end.*/
         }
         console.log(`Title caps in a string array : [${title_capped_arr}]`);
         }
         title_cap(str_arr)                                             //calling the function.

    //IIEF function:
         let str_arr1=["deepak","kumar","ramesh","kishore"]
         console.log(`Title caps in a string array :[${
         (function(str_arr){
            let title_capped_arr=[];
             for(let str of str_arr){
                 title_capped_arr.push(str.charAt(0).toUpperCase()+str.slice(1));
         }
         return title_capped_arr
         })(str_arr1)}]`);     
    //The above 2 program result is ====>  Title caps in a string array :[Deepak,Kumar,Ramesh,Kishore]

//c)sum of all number in an array:
    //anonymous function:  
         let num1=[1,2,3,4,5]
         let sum=function(...arr){                                      //here using spread operator .
             for (let index in arr){
                 console.log(`Sum of all number : ${(arr[index].reduce((prev, current) => prev + current,0))}`);
                 }
         }
         sum(num1)  

    //IIEF function:
        let num21=[1,2,3,4,5]
        console.log(`Sum of all number :${
        (function(num2){
        let result=0;
        for (let index in num2){
             result+=num2[index];                                       //adding result to the varialbe in this line.
            }
            return result;
        })(num21)}`)   
    //The above 2 program result is ====>  Sum of all number :15

// d)Return all prime number in an array:
    //anonymous function:
        let num12=[1,2,3,4,5,6,7,8,9,10]
        let primenum=[];
        let primenumber=function(arr){
              for(let aa of arr){
              if(aa>1){
                    let flag=true;                                      //here using flag varialbe.
                    for(let i=2;i<aa;i++){
                          aa%i===0? flag=false:true;                    //ternary and modulo operator using here.
                    }flag?primenum.push(aa):true;
              }
        }}
        primenumber(num12)
        console.log(`Prime numbers is: ${primenum}`);

    //IIEF function:
        let num123=[1,2,3,4,5,6,7,8,9,10]
        console.log(`Prime numbers are: ${                              // make a function inside a console.log method.
         (function(num1){
          let primenum=[];
          for (let v of num1){
                if(v>1){
                      let flag=true;
                      for(let i=2;i<v;i++){                             //normal for loop to start the loop from 2.
                            v%i===0?flag=false:true;                    //modulo operator and ternary operator.
                      }flag?primenum.push(v):true;
                }
          }
          return primenum;
         }(num123))                                                     //giving parameters to IIFE function.
        }`)
    //The above 2 program result is ====>  Prime numbers are : 2,3,5

//e)Palandrome in an array:
    //Annonymous functon:
        let arr12=["did","asddsa","dkdd",123321,121,1234];
        let reverse=function(num){
             let a=String(num).split("")
             let rev=[];
             let l=a.length;
             for(let i=l-1;i>=0;i--){                                    //using normal loop to generate index from descendeing order.
                 rev.push(a[i]);
                 }
             rev=rev.join("");                                           //joining the elements in the array using join function and make a string word.
             return rev;
             }
             result1_arr=[];
             for(let v of arr12){
                 v=String(v);                                            //convering number to string by using type casting.
                 v==reverse(v)? result1_arr.push(v):false;
             }
        console.log(result1_arr);

    //IIEF function:
            let arr13=["did","asddsa","dkdd",123321,121,1234];
            console.log(
            (function(arr){
                 result=[];
                 for(let num of arr){                                     //for of loop.
                 let a=String(num).split("")
                 let rev=[];
                 let l=a.length;
                 for(let i=l-1;i>=0;i--){
                     rev.push(a[i]);
                 }
                 rev=rev.join("");
                 a=a.join("")
                 rev===a? result.push(rev):false;
            }   return result;
            })(arr13));
    //  The above 2 program result is ====>  [ 'did', 'asddsa', '123321', '121' ]
   
//f)Median of two sorted arrays of same size:
    //annonymous Function:
            let arr121=[2, 3, 5, 8]
            let arr222=[10, 12, 14, 16, 18, 20]
            let median=function(arr1,arr2){
                 let arr_com=[...arr1,...arr2];                            //using spread opertor to combine a array.
                 arr_com.sort((a,b)=>a-b)                                  //sorting  an array using bubble sort method.
                 let len=arr_com.length;
                 let arr_l=len/2;
                 let result=arr_com[arr_l]+arr_com[arr_l-1];
                 return result/2;
            }
            console.log(`Median for given two equal arrays are: ${median(arr121,arr222)}`);

    //IIFE Function:
            let arr111=[2, 3, 5, 8];
            let arr221=[10, 12, 14, 16, 18, 20];
            console.log(`Median for given two equal arrays are: ${
            (function(arr1,arr2){
                 let arr_com=[...arr1,...arr2];
                 arr_com.sort((a,b)=>a-b);
                 let len=arr_com.length;                                    //finding length by using length method.
                 let arr_l=len/2;
                 let result=arr_com[arr_l]+arr_com[arr_l-1];
                 return result/2;
            })(arr111,arr221)
            }`);
      //The above 2 program result is ====>  Median for given two equal arrays are: 11

//g)Remove duplicates from a array:
    //Annonymous function:
            var arr_s = ["apple", "mango", "apple","orange", "mango", "mango"];
        
            let remove_duplicates=function(arr){
                 let a=[];
                 console.log([...new Set(arr)])                              //using set remove duplicate and make new array using spread operator.
            }
            remove_duplicates(arr_s);

    //IIPE Function:
            var arr_s1 = ["apple", "mango", "apple",
                    "orange", "mango", "mango"];
            (function(arr){
                 let a=[];
                 console.log([...new Set(arr)])
            }(arr_s1));                                                      //input parameter.
    //The above 2 program result is ====> [ 'apple', 'mango', 'orange' ]

//h)Rotate an array bye K times:
    //Annonymous function:
            let arr10=["santa","monica","colombia","zimbabe","hutson"];
            let k1=5;
            let rotate_array=function(arr1,k){
                 let arr=[...arr1];
                 arr.push(arr.shift());
                 for(let i=1;i<=k;i++){
                 }
                 return arr;
            };
            console.log(rotate_array(arr10,k1));                             //calling function and insert input parameter inside the console.log.

    //IIFE Function:
            let arr100=["santa","monica","colombia","zimbabe","hutson"];
            let k=3;
            (function(arr1,k){
                 let arr=[...arr1];                                          //copying array value using spread operator.
                 for(let i=1;i<=k;i++){
                 arr.push(arr.shift());
                 }
                 console.log(arr);
            }(arr100,k));
    //The above 2 program result is ====> [ 'zimbabe', 'hutson', 'santa', 'monica', 'colombia' ]