|  | @@ 485-494 (lines=10) @@ | 
                                                            
                                    | 482 |  |    * | 
                                                            
                                    | 483 |  |    * @return static <p>Object with its $str prefixed by the $substring.</p> | 
                                                            
                                    | 484 |  |    */ | 
                                                            
                                    | 485 |  |   public function ensureLeft(string $substring): Stringy | 
                                                            
                                    | 486 |  |   { | 
                                                            
                                    | 487 |  |     $stringy = static::create($this->str, $this->encoding); | 
                                                            
                                    | 488 |  |  | 
                                                            
                                    | 489 |  |     if (!$stringy->startsWith($substring)) { | 
                                                            
                                    | 490 |  |       $stringy->str = $substring . $stringy->str; | 
                                                            
                                    | 491 |  |     } | 
                                                            
                                    | 492 |  |  | 
                                                            
                                    | 493 |  |     return $stringy; | 
                                                            
                                    | 494 |  |   } | 
                                                            
                                    | 495 |  |  | 
                                                            
                                    | 496 |  |   /** | 
                                                            
                                    | 497 |  |    * Returns true if the string begins with $substring, false otherwise. By | 
                                                                                
                                |  | @@ 550-559 (lines=10) @@ | 
                                                            
                                    | 547 |  |    * | 
                                                            
                                    | 548 |  |    * @return static <p>Object with its $str suffixed by the $substring.</p> | 
                                                            
                                    | 549 |  |    */ | 
                                                            
                                    | 550 |  |   public function ensureRight(string $substring): Stringy | 
                                                            
                                    | 551 |  |   { | 
                                                            
                                    | 552 |  |     $stringy = static::create($this->str, $this->encoding); | 
                                                            
                                    | 553 |  |  | 
                                                            
                                    | 554 |  |     if (!$stringy->endsWith($substring)) { | 
                                                            
                                    | 555 |  |       $stringy->str .= $substring; | 
                                                            
                                    | 556 |  |     } | 
                                                            
                                    | 557 |  |  | 
                                                            
                                    | 558 |  |     return $stringy; | 
                                                            
                                    | 559 |  |   } | 
                                                            
                                    | 560 |  |  | 
                                                            
                                    | 561 |  |   /** | 
                                                            
                                    | 562 |  |    * Returns true if the string ends with $substring, false otherwise. By |