version-compare/edition-browsers/index.js

Comparator to determine if a version is less than, equivalent to, or greater than another version

export var VersionIs;
(function (VersionIs) {
    VersionIs[VersionIs["LessThan"] = -1] = "LessThan";
    VersionIs[VersionIs["EqualTo"] = 0] = "EqualTo";
    VersionIs[VersionIs["GreaterThan"] = 1] = "GreaterThan";
})(VersionIs || (VersionIs = {}));
/**
 * Compare two versions quickly.
 * @param current Is this version greater, equal to, or less than the other?
 * @param other The version to compare against the current version
 * @returns 1 if current is greater than other, 0 if they are equal or equivalent, and -1 if current is less than other
 */
export default function versionCompare(current, other) {
    const cp = String(current).split('.');
    const op = String(other).split('.');
    for (let depth = 0; depth < Math.min(cp.length, op.length); depth++) {
        const cn = Number(cp[depth]);
        const on = Number(op[depth]);
        if (cn > on)
            return VersionIs.GreaterThan;
        if (on > cn)
            return VersionIs.LessThan;
        if (!isNaN(cn) && isNaN(on))
            return VersionIs.GreaterThan;
        if (isNaN(cn) && !isNaN(on))
            return VersionIs.LessThan;
    }
    return VersionIs.EqualTo;
}