Array Based Questions:-

• Find the largest element in an array.
• Find the smallest element in an array.
• Reverse an array without using extra array.
• Check whether an array is sorted or not.
• Count total even and odd numbers in an array.
• Find the sum of all elements of an array.
• Find the index of a given element in an array.
• Count frequency of each element in an array.
• Remove duplicate elements from a sorted array.
• unique array
• (use indexOf and splice)
• Move all zero elements to the end of the array.

Question: Function Expression & Hoisting

console.log(add(10, 20));

var add = function(a, b) {
  return a + b;
};

Tasks:

1. Predict the output.
2. Explain why this output occurs.
3. Convert it into a working version without changing function expression