Describe the bug
Casting is not available in BL.

Example:
const startingYear: int32 = startingDateString.split('/').pop();
This one gives error

Solution
We should have something like
const startingYear: int32 = startingDateString.split('/').pop().toInt();
or
const startingYear: int32 = (int32) startingDateString.split('/').pop();

Expected behavior
A clear and concise description of what you expected to happen.