compareValue method
Compares the given value
against the extents.
Returns -1 if the value is less than the extents. Returns 0 if the value is within the extents inclusive. Returns 1 if the value is greater than the extents.
Implementation
int compareValue(num value) {
if (value < min) {
return -1;
}
if (value > max) {
return 1;
}
return 0;
}