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  • 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)