function count(subject) {
    return coerceToString(subject).length;
  }
Counts the characters in `subject`.<br/>

@function count
@static
@since 1.0.0
@memberOf Count
@param  {string} [subject=''] The string to count characters.
@return {number}              Returns the number of characters in `subject`.
@example
v.count('rain');
// => 4