Stop execution of Javascript function (client side) or tweak it

Question

I want to stop the execution of one single line from a site, so that the whole page is read by the browser except that single line. Or the browser may simply skip the execut

Answer 1

Using TamperMonkey? All you need to add below your // @grant in the TamperMonkey header is // @require http://urlofyoursite.com/myfile.js. For example, here is the very top of my TamperMonkey thingie:

// ==UserScript==
// @name         Project
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        https://docs.google.com/presentation/*
// @grant        none
// @require http://cdnjs.cloudflare.com/ajax/libs/annyang/2.1.0/annyang.min.js
// ==/UserScript==