Write a function that simply repeats the string a given number of times:

repeatString('hey', 3) // returns 'heyheyhey'

This function will take two arguments, string and num.

Use loops to implement repeatString rather than using the builtin String.prototype.repeat which has the same behaviour.

Note: The exercises after this one will not have arguments provided as this one does - you will need to provide them yourself from now on. So read each exercise's README carefully to see what kinds of arguments will be expected.

• Take note of the above function call- how exactly is it being called?

• Create a variable to hold the string you're going to return, create a loop that repeats the given number of times and add the given string to the result on each loop.