Google slash search

slash-search.js

// ==UserScript==
// @name         Google Slash Search
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        https://www.google.com/search*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    window.addEventListener("keypress", e => {
        if (e.key == "/") {
            const searchField = document.querySelector('#searchform input[type="text"]');
            searchField.focus();
            searchField.setSelectionRange(0, searchField.value.length);
            e.preventDefault();
        }
    });
})();