Function integerTest

integerTest(
    value: undefined | number,
    range?: NumberGuardRange,
    parameterName?: string,
): GuardResult
Checks if value an integer and meets additional criteria. See numberTest for guard details, or use that if integer checking is not required.

Note:
- bipolar will mean -1, 0 or 1.
- positive: must be at least zero
- negative: must be zero or lower
- aboveZero: must be above zero
- belowZero: must be below zero
- percentage: must be within 0-1, inclusive
- nonZero: can be anything except zero
Parameters
- value: undefined | number
  Value to check
- range: NumberGuardRange = ...
  Guard specifier.
- parameterName: string = ...
  Param name for customising exception message
Returns GuardResult