Parsing a semver string and translating values

simple.js

"1.2.3-pre+build".match(/(\d+)(?:\.(\d+)(?:\.(\d+))?)?(?:-([^+]+))?(?:\+(.+))?/).map(function (value, index) { return index > 0 && index < 4 ? parseInt(value || 0) : value; });

sort.js

[ "3.0.1", "3.0.2-1+build", "1.1", "2.1" ]
    .map(function (semver) {
        return (/(\d+)(?:\.(\d+)(?:\.(\d+))?)?(?:-([^+]+))?(?:\+(.+))?/.exec(semver) || [])
            .map(function (value, index) {
                return index > 0 && index < 4
                    ? parseInt(value || 0)
                    : value;
            });

    })
    .sort(function (b, a) {
        var major = a[1] - b[1];
        var minor = a[2] - b[2];
        var patch = a[3] - b[3];

        return major == 0
            ? minor === 0
                ? patch
                : minor
            : major;
    })
    .map(function (array) {
        return array[0];
    });