.charAt()
Description of the method
| Description: | This method returns the character located at the String's specified index. The string indexes start from zero. |
| Available for: | string |
| Parameters: | int |
| Return type: | char |
Example
| Context: | TransactionType1 |
| OCL: | self.Id.charAt(1) = "A" |
| Description: | Example rule expects the position 1 (the second character in string) to contain "A". |
The XML snippets below would pass this check.
<Id>aAa</Id>
<Id>a</Id>
It is worth noting that when the character does not exist in the defined position, expression is not ran.
The other snippet below however would not pass this check.
<Id>AaA</Id>