Write a program to

1) in a user-input loop, ask the user for a word or sentence of words.

2) if user enters nothing then quit/break the loop

3) otherwise:

A) split the user input, creating an array of words

B) create a new empty array

C) for each word:

a) convert the string to lower case (find the string function)

b) push this string to the new array

4) join the new array of words (use spaces not commas as separators) and document.write the result