// METHODS OF ARRAYS
/*
  push(elem_list): Adds one or more elements to the end of the array, 
                   and returns the new length of the array. 

            pop(): removes the last element in the array, decrements the length,
                   and the element that it removed
                 
unshift(elem_list): adds one or more elements to the beginning of the
                    array and returns the new length of the array

           shift(): Removes the first element in the array, decrements the 
                    array length, and returns the element that it removed

  join(seperator): when no parameter is passed, this method converts all the elements
                   of the array to strings and concatenates them seperated 
                   by commas. To change the seperator, you can pass this method 
                   a string literal

      toString():  Same as the join method without any parameter passed to it. 
*/

// creating an array of strings
console.log("Original Array")
let animals = ["Zebra", "Koala", "Lion", "Elephan", "Eagle"]
console.log(animals)
console.log()

console.log("Inserting Monkey and Snake at end of array")
animals.push("Monkey", "Snake");
console.log(animals)
console.log()

console.log("Removing last element of array")
animals.pop()
console.log(animals)
console.log()

console.log("Inserting Spider and horse at front of array")
animals.unshift("Spider", "horse")
console.log(animals)
console.log()

console.log("Removing first item from array")
animals.shift()
console.log(animals)
console.log()

console.log("Joining array elements in a single string")
let s = animals.join(" ")
console.log(s)
console.log()

// combining array seaanimals and animals into one array named allanimals
console.log("combining array seaanimals and animals into one array named allanimals")
let seaAnimals = ["Shark", "Whale", "Dolphin"]
let allanimals = seaAnimals.concat(animals)
console.log(allanimals)
console.log()