function repeat(string, n, guard) {
  if (guard ? isIterateeCall(string, n, guard) : n === undefined) {
    n = 1;
  } else {
    n = toInteger(n);
  }

  return baseRepeat(toString(string), n);
}
Repeats the given string `n` times.

@static
@memberOf _
@since 3.0.0
@category String
@param {string} [string=''] The string to repeat.
@param {number} [n=1] The number of times to repeat the string.
@param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
@returns {string} Returns the repeated string.
@example

_.repeat('*', 3);
// => '***'

_.repeat('abc', 2);
// => 'abcabc'

_.repeat('abc', 0);
// => ''