Free NPM Explore

Allow exploring NPM packages for free

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @match       https://www.npmjs.com/package/*
// @match       https://js.stripe.com/v3/controller-3d240f15c7d33335abc8bc509e1f19ad.html*
// @name        Free NPM Explore
// @description Allow exploring NPM packages for free
// @grant       GM.addElement
// @version     0.1.0
// @author      KaKi87
// @license     GPL-3.0-or-later
// @namespace   https://git.kaki87.net/KaKi87/userscripts/src/branch/master/FreeNpmExplore
// ==/UserScript==

if(window.location.href.startsWith('https://www.npmjs.com/package/')){

    let iframe;

    document.querySelector('#package-tab-explore').addEventListener('click', async event => {
        await new Promise(resolve => {
            const _ = () => {
                const el = document.querySelector('#tabpanel-explore div');
                if(el)
                    resolve(el.setAttribute('style', 'display: none;'));
                else
                    window.requestAnimationFrame(_);
            };
            _();
        });
        if(iframe)
            iframe.style.display = 'block';
        else {
            const [, package, version] = window.location.href.match(/^https:\/\/www\.npmjs\.com\/package\/(.+?)(?:\/v\/(.+))?$/);
            iframe = document.createElement('iframe');
            iframe.setAttribute('src', `https://js.stripe.com/v3/controller-3d240f15c7d33335abc8bc509e1f19ad.html?${new URLSearchParams({ package, version })}`);
            iframe.setAttribute('style', 'border: none; width: 100%; height: 40rem');
        }
        if(!document.body.contains(iframe))
            document.querySelector('#tabpanel-explore').appendChild(iframe);
    });

    document.querySelectorAll('[id^="package-tab"]:not(#package-tab-explore)').forEach(el => el.addEventListener('click', () => {
        if(iframe)
            iframe.style.display = 'none';
    }));

}

else if(window.location.href.startsWith('https://js.stripe.com/v3/controller-3d240f15c7d33335abc8bc509e1f19ad.html')){

    if(window.self !== window.top){
        const
            sharedCss = 'position: absolute; top: 0; left: 0; width: 100vw; height: 100vh;',
            splash = document.createElement('div');
        splash.setAttribute('style', sharedCss + 'z-index: 1; background-color: black; display: flex; justify-content: center; align-items: center; font-size: 2.5rem');
        splash.innerText = 'Loading UNPKG...';
        document.body.appendChild(splash);
        const
            {
                package,
                version
            } = Object.fromEntries(new URL(window.location.href).searchParams.entries()),
            iframe = document.createElement('iframe');
        iframe.setAttribute('src', `https://unpkg.com/browse/${package}${version === 'undefined' ? '' : `@${version}`}/`);
        iframe.setAttribute('style', sharedCss + 'border: none; z-index: 2');
        document.body.appendChild(iframe);
    }

}