npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2026 – Pkg Stats / Ryan Hefner

truthjs

v1.1.0

Published

validation library

Readme

truthjs

Maintainability Test Coverage

truthjs is a javascript validator library for:

  • Number
  • Array (future support)
  • Boolean (future support)
  • Email (future support)
  • Network (future support)
  • Object (future support)
  • String (future support)

truthjs was implemented by functional approach by creating validator composable.

truthjs uses recent ES features. It is tested on stable Node. If you need to support legacy browsers consider using a transpiler with polyfills.

Installation

truthjs can be installed using npm.

npm install --save truthjs

For the complete code including all tests the repo can be cloned.

git clone https://github.com/hoangtranson/truejs.git
cd truejs
npm run test

Getting Started

The truthjs function composes the validator to a single validator function. The validator are run in order, if one returns false the following functions will not be run.

In this example the age:

  • Must be a number.
  • Must be a integer.
  • Must between 1 and 100.
const truth = require("truthjs");
const { isNumber, isInteger, between } = require("truthjs/number");
const ageValidator = truth(isNumber(), isInteger(), between(1, 100));

ageValidator(5);
ageValidator(-10);
ageValidator(1.0);