| AllChars : Hello. Length : 5 |
| 72 |
| 101 |
| 108 |
| 108 |
| 111 |
| AllChars : HelloWorld. Length : 10 |
| 72 |
| 101 |
| 108 |
| 108 |
| 111 |
| 87 |
| 111 |
| 114 |
| 108 |
| 100 |
| Got a exception. String.prototype.charCodeAt: 'this' is null or undefined |
| >> FirstChar : undefined |
| Got a exception. String.prototype.charCodeAt: 'this' is null or undefined |
| >> FirstChar : 0 |
| 48 |
| << FirstChar. |
| >> FirstChar : 1.1 |
| 49 |
| << FirstChar. |
| >> FirstChar : 10 |
| 49 |
| << FirstChar. |
| >> FirstChar : Hello |
| 72 |
| << FirstChar. |
| >> FirstChar : true |
| 116 |
| << FirstChar. |
| >> FirstChar : false |
| 102 |
| << FirstChar. |
| >> FirstChar : true |
| 116 |
| << FirstChar. |
| >> FirstChar : [object Object] |
| 91 |
| << FirstChar. |
