| Substring indexing |
x is the starting index and OCR uses 0-based indexing. |
"ComputerScience".substring(3,5) starts at the fourth character. |
| Methods do not change the original |
Store the result if you want to reuse it later. |
upperName = name.upper keeps the converted version. |
| ASCII works with single characters |
ASC converts a character to a number and CHR converts a number to a character. |
ASC("A") is valid, but ASC("AB") is not. |