Replace npm code tab with NPM Browser

goto-npm-browser.user.js

// ==UserScript==
// @name        Read the code in NPM Browser
// @namespace   goto-npm-browser.hyrious.me
// @match       https://www.npmjs.com/package/*
// @grant       none
// @version     1.0
// @author      hyrious
// @description Change the Code tab to goto https://hyrious.me/npm-browser
// ==/UserScript==
void function() {
  "use strict"

  setTimeout(() => {
    var a = document.querySelector('[href="?activeTab=code"]')
    if (a != null) {
      a.href = 'javascript:void 0'
      a.onclick = function jump(ev) {
        ev.stopPropagation()
        ev.preventDefault()
        var spec = location.pathname.split('/').slice(2).join('/').replace(/\/v\/([^/]+)/, '@$1')
        location.href = 'https://hyrious.me/npm-browser/?q=' + spec
      }
    }
  })
}();