semver-diff

What is semver-diff?

The semver-diff npm package is a utility for comparing two semantic version numbers and determining the type of version difference between them. It can identify whether the change is a major, minor, patch, pre-release, or build difference.

What are semver-diff's main functionalities?

Version difference identification

This feature allows you to compare two semantic version numbers and determine the type of change. The code sample demonstrates how to use semver-diff to compare versions '1.0.0' and '2.0.0', which would log 'major' as the type of version difference.

"use strict";
const semverDiff = require('semver-diff');

const diffType = semverDiff('1.0.0', '2.0.0');
console.log(diffType); // 'major'"

Other packages similar to semver-diff

semver

The semver package is a more comprehensive semantic version parser and utility. It includes functions for parsing, comparing, and incrementing version numbers, as well as determining version precedence. Compared to semver-diff, semver offers a broader set of tools for working with semantic versions beyond just identifying the difference between two versions.

compare-versions

Compare-versions is a simple utility for comparing and sorting semantic version numbers. It provides a straightforward API for comparing version strings and determining their order. While semver-diff specifically identifies the type of version difference, compare-versions focuses on comparison and sorting without categorizing the type of change.

README

semver-diff

Get the diff type of two semver versions: 0.0.1 0.0.2 → patch

Install

$ npm install semver-diff

Usage

import semverDiff from 'semver-diff';

semverDiff('1.1.1', '1.1.2');
//=> 'patch'

semverDiff('1.1.1-foo', '1.1.2');
//=> 'prepatch'

semverDiff('0.0.1', '1.0.0');
//=> 'major'

semverDiff('0.0.1-foo', '1.0.0');
//=> 'premajor'

semverDiff('0.0.1', '0.1.0');
//=> 'minor'

semverDiff('0.0.1-foo', '0.1.0');
//=> 'preminor'

semverDiff('0.0.1-foo', '0.0.1-foo.bar');
//=> 'prerelease'

semverDiff('0.1.0', '0.1.0+foo');
//=> 'build'

semverDiff('0.0.1', '0.0.1');
//=> undefined

semverDiff('0.0.2', '0.0.1');
//=> undefined

API

semverDiff(versionA, versionB)

Returns the difference type between two semver versions, or undefined if they are identical or the second one is lower than the first.

Possible values:

• 'major',
• 'premajor',
• 'minor',
• 'preminor',
• 'patch',
• 'prepatch',
• 'prerelease',
• 'build',
• undefined

Related

• latest-semver - Get the latest stable semver version from an array of versions
• to-semver - Get an array of valid, sorted, and cleaned semver versions from an array of strings
• semver-regex - Regular expression for matching semver versions
• semver-truncate - Truncate a semver version: 1.2.3 → 1.2.0

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