Shift / Unshift

All of these functions are responsible for either adding a item to an existing array, or removing an item from an existing array.

shift()

Remove and return the first item in an Array.

let arr = [1,2,3,4];
arr.shift(); // 1

arr; // [2,3,4]

unshift(value)

Add an item to the beginning of an Array and return the resulting length of the Array.

let arr = [1,2,3,4];
arr.unshift('kiwi'); // 5

arr; // ['kiwi',1,2,3,4]

Skill Drill

1. Create a classmates array, that has the string representation of a few of your class' first names inside of it.

2. Use shift() to store the first name from your classmates array into a variable named first.

3. Use console.log to print out first, use another console.log to print out the classmates array.

4. Use unshift() to add the first name of three new people to your classmates array.

5. Use console.log to print out the classmates array.

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