libyear/src/versions.js

A simple measure of software dependency freshness

import { default as semver } from "semver";
const { diff, prerelease, valid } = semver;
/**
 * Filter versions by release type.
 */
export const getReleasesByType = (versions, type) => versions.filter((value, index, array) => diff(array[index - 1] ?? value, value) === type);
/**
 * Filter out "time" metadata about the package.
 */
export const getSanitisedReleases = (releases) => new Map(Array.from(releases.entries()).filter(([version, _]) => valid(version)));
/**
 * Filter pre-release versions.
 */
export const getStableReleases = (releases) => new Map(Array.from(releases.entries()).filter(([version, _]) => prerelease(version) == null));