Practice set 5

Create an array of numbers and take input from user and add into array
Keep adding numbers to array untill zero is added
Filter for numbers divisible by 10
Create an array of square of the numbers
Use reduce to calculate factorial of a given number from an array of first n natural numbers (n being te number whose factorial needs to be calculated)

  // Problemm No 1
  let arr = [1,2,3,4]
  let a = prompt("Enter a number")
  a = Number.parseInt(a)
  arr.push(a)
  console.log(a)

  // Problem No 2
  let arr2 = [  3, 4]
  let b = prompt("Enter a number");
  b = Number.parseInt(b)
  while (b!= 0) {
      if (!isNaN(b)) {arr2.push(b)}
      b = prompt("Enter a number")
      b = Number.parseInt(b)
  }
  console.log(arr2)
  // If 0 also should be added
  let c;
  let arr3 = [4,5]
  do {
      c = prompt("Enter a number");
      c = Number.parseInt(c)
      arr3.push(c)
  } while (c!=0)
  console.log(arr3)

  // Problem No 3

  let d = [10,9,8,90,80,5,50]
  let d_new = d.filter((value)=>{
      return value%10 == 0
  })
  console.log(d_new)

  // Problem No 4
  let e  =[ 1,2,3,4]
  let e_new = e.map((value)=> {
      return value*value
  })
  console.log(e_new)

  // Problem No 5
  let f = [1,2,3,4]
  let f_new = f.reduce((value1,value2)=>{
      return value1*value2
  })
  console.log(f_new)