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 🙏

© 2024 – Pkg Stats / Ryan Hefner

autotune

v2.0.63

Published

Automatically tune JavaScript apps

Downloads

147

Readme

Automatically improve your apps & web sites

A/B testing is critical to optimizing any app, but implementing tests and analyzing results can be awkward and time-consuming.

As developers, we want adding A/B tests to any app to be as simple as adding a line of code. We also want machine learning algorithms to analyze our test results and optimize our app for us, automatically, without having to think twice.

This is why we created Autotune. With Autotune, you create special variables in your program that Autotune will automatically tune over time to improve outcomes.

Not sure what your main call-to-action should be, or what color to use for the button? Just make a few good guesses and Autotune will make the best decision.

Create an account and your first app

$ npm install -g autotune
$ tune signup <email> <password> # Autotune will email you a confirmation code
$ tune confirm <code>            # Autotune will give you a code sample

Examples

Basic Tutorial

Once you've created an app, add a <script> tag in your page's <head> section. This loads the autotune library, data about your experiments so far, and initializes autotune:

<head>
    <!-- ... -->
    <script src="https://js.autotune.xyz/YOUR-APP-KEY.js"></script>
</head>

Next, create an experiment anywhere on your page:

<!-- Shorthand syntax -->
<autotune>
    <h1>The glass is half full</h1>
    <h1>The glass is half empty</h1>
</autotune>

<!-- Same but more explicit -->
<autotune experiment="Main title">
    <h1 option="half full">The glass is half full</h1>
    <h1 option="half empty">The glass is half empty</h1>
</autotune>

<!-- Without custom tags (most compatible) -->
<h1 data-experiment="Main title" data-option="half full">The glass is half full</h1>
<h1 data-experiment="Main title" data-option="half empty">The glass is half empty</h1>

Finally, add the autotune attribute to links you want users to click:

<!-- Shorthand syntax -->
<a href="/buy-now" autotune>Buy now</a>

<!-- Using standard custom attribute -->
<a href="/buy-now" data-autotune>Buy now</a>

Autotune will decide which <h1> to display, and favor the choice that causes most users to click Buy now.

Autotuned styles

Use the autotune-class attribute to let Autotune apply the CSS class that performs the best:

<style>
.clean      { ... }
.busy       { ... }
.extra-busy { ... }
</style>

<body autotune-class="clean busy extra-busy">
  ...
</body>

Autotune will randomly assign either the clean, busy, or extra-busy class to your body tag, and then begin to favor the class that performs the best.

JavaScript API

"Log in" or "Sign in"?

Not sure if your main CTA should be Log in or Sign in? Let Autotune pick the one that works best:

import * as autotune from "autotune";

autotune.initialize("11397F73-FF90-4831-B7F7-85023F1741E4", () => {
    ReactDOM.render(
        <div>
            <h1>Welcome to my app!</h1>
            <button onClick={autotune.complete}>{autotune.flipCoin("cta") ? "Log in" : "Sign in"}</button>
        </div>,
        document.getElementById("root")
    );
});

Autotune will flip a coin to decide whether to use Log in or Sign in, and over time will favor the choice that gets more users to click the button.

Which hero message should we use?

Here we add an autotuned welcome message to a simple React app:

import * as autotune from "autotune";

// 1. Initialize
autotune.initialize("11397F73-FF90-4831-B7F7-85023F1741E4", () => {
    // 2. Create a variable
    const title = autotune.oneOf("Welcome message", [
        "👋 Please sign in.",
        "Welcome! Please sign in.",
        "Bienvenidos! Please sign in."
    ]);

    ReactDOM.render(
        <div>
            // 3. Use the variable
            <h1>{title}</h1>
            <button onClick={() => /* 4. Indicate success */ autotune.complete()}>Sign in</button>
        </div>,
        document.getElementById("root")
    );
});

Autotune will experiment with different titles on this page, and automatically tune the app to use the title that causes the most users to click 'Sign in' over time.

Development

$ npm install
$ npm start