isLte function

IValidator isLte(
  1. num max
)

Checks whether the given value is less than or equal max

Implementation

IValidator isLte(num max) =>
    isType<num>() &
  ((isLt(max) | isEq(max)) > Expectation(
    message: 'less than or equal to $max',
    code: 'value.range_out_of_bounds',
    data: {'operator': '<=', 'limit': max}));