compareTo method
Compares this to other.
Returns a negative number if this is less than other, zero if they are
equal, and a positive number if this is greater than other.
Example:
print(Obj(BigInt.from(1)).compareTo(BigInt.from(2))); // => -1
print(Obj(BigInt.from(2)).compareTo(BigInt.from(1))); // => 1
print(Obj(BigInt.from(1)).compareTo(BigInt.from(1))); // => 0
Implementation
int compareTo(BigInt other) => value.compareTo(other);