description

# compareTo method Null safety

int compareTo (

1. DateTime other

)
override

Compares this DateTime object to `other`, returning zero if the values are equal.

Returns a negative value if this DateTime isBefore `other`. It returns 0 if it isAtSameMomentAs `other`, and returns a positive value otherwise (when this isAfter `other`).

## Implementation

    external int compareTo(DateTime other);