code: function toArray(line, delimiter) {
    var arr = line
      .split(delimiter)
      .filter(Boolean)
    return arr
  }
docs: Parse a string into an array by splitting it
  at `delimiter` and filtering out empty values.
  
  @param  {String}        line
  @param  {String|RegExp} delimiter
  @return {Array}
  
  @api private