version-compare
Comparator to determine if a version is less than, equivalent to, or greater than another version
qunit-assert-compare
A QUnit plugin for asserting numerical comparisons like greater than, less than, etc.
version-clean
Turn a dirty version (such as v1, =1.0.x, >1.0 <2) into a clean version (1.0)
semver-max
Find maximum (or minimum) version according to semver