Write a function called repeatBeat that takes in a string str and a number n and returns the string repeated n times with a space between each repeat. You may assume n >= 0. There are some sample inputs and outputs below. Note: To receive full credit, there can be no space at the end of the output. repeatBeat("whoop", 3); | repeatBeat ("swoosh", 0); // returns "whoop whoop whoop" // returns !!!! | 7/Write your code here