Function diffPartStrings

diffPartStrings(
v1: string | undefined,
v2: string | undefined,
): PreRelease | Patch | Minor | Major | null
Returns a version diff without considering which version is higher than the other (symmetric comparison).
Parameters
- v1: string | undefined
  The first version string to compare.
- v2: string | undefined
  The second version string to compare.
Returns PreRelease | Patch | Minor | Major | null