Types of for Loop in JavaScript

Program 1

"use strict"
const ps=require("prompt-sync")
const prompt=ps({sigint:true})

// Typs of For loop in Java Script

/*
   for 
   for in 
   for of 
   for each
*/
// let mydata=[10,20,30,40,50,60,70,80,90,100]

mydata.forEach(element => 
    {
       console.log(element) 
   });

// let mystr="Hello Friends how are you"
// let vowel=0
// console.log(mystr)
// for (const element of mystr) 
//     {
//         if(element=='a' ||element=='i'||element=='o' ||element=='e' ||element=='u')
//             vowel++
//    }
// console.log("Total Vowel: "+vowel)


// let mydata=[10,20,30,40,50,60,70,80,90,100]
// let i
// let sum=0
// let element
// for (element of mydata) 
//  {
//     console.log(element)
//     sum=sum+element
//  }    
//  console.log("total is: "+sum)





// for (i in mydata)
// {
//    console.log(i+"="+mydata[i])
//    sum=sum+mydata[i]
// }
// console.log("total is: "+sum)









// let n=parseInt(prompt("Enter a number"))
// let i
// for(i=1;i<=10;i++)
// {
//     console.log(n*i)
// }
// let mydata=[10,20,30,40,50,60]
// let i
// for(i=0;i<mydata.length;i++)
// {
//     console.log(mydata[i])
// }