vertical(arg1) {
    /** Getter */
    if ( arg1 === undefined )
      return this._vertical;
    
    /** Setter */
    else if ( typeof arg1 == 'boolean' )
      this._vertical = arg1; 
    
    /** Handle errors */
    else
      throw new TypeError(`ButtonGroup.vertical(): Invalid signature (${typeof arg1}).`);
    
    /** Allow for call chaining */
    return this;
  }
/**
   * Vertical boolean getter/setter.
   * @signature vertical() Get the vertical boolean
   * @signature vertical(boolean) Set the vertical boolean as (boolean)
   * @return This object for call chaining
   */
Vertical boolean getter/setter.
@signature vertical() Get the vertical boolean
@signature vertical(boolean) Set the vertical boolean as (boolean)
@return This object for call chaining
Vertical boolean getter / setter . @signature vertical () Get the vertical boolean @signature vertical ( boolean ) Set the vertical boolean as ( boolean ) @return This object for call chaining
vertical(arg1) {
    if ( arg1 === undefined )
      return this._vertical;
    else if ( typeof arg1 == 'boolean' )
      this._vertical = arg1; 
    else
      throw new TypeError(`ButtonGroup.vertical(): Invalid signature (${typeof arg1}).`);
    return this;
  }
vertical ( arg1 ) { if ( arg1 === undefined ) return this . _vertical ; else if ( typeof arg1 == 'boolean' ) this . _vertical = arg1 ; else throw new TypeError ( ` ${ typeof arg1 } ` ) ; return this ; }
Vertical boolean getter/setter.
Vertical boolean getter / setter .
/** Getter */ /** Setter */ /** Handle errors */ /** Allow for call chaining */