function chars(subject) {
    var subjectString = coerceToString(subject);
    return subjectString.split('');
  }
Splits `subject` into an array of characters.

@function chars
@static
@since 1.0.0
@memberOf Split
@param {string} [subject=''] The string to split into characters.
@return {Array} Returns the array of characters.
@example
v.chars('cloud');
// => ['c', 'l', 'o', 'u', 'd']