#Javascript You can stop **any** output destroying (most of) the `window` object. Also, you can't get rid of `document`, but you can crush it's content every millisecond. Here's what I came up with: <!-- language: lang-js --> (function(window){ var html = document.getElementsByTagName('html')[0]; setInterval(function(){html.innerHTML='';}, 1); window.addEventListener('error', function(){}); for(var k in window) { if(k!='location') { window[k]=window; } } })(Function('return this')()); This sets every single object inside `window` (except `location`, it will reload the page) to be ... the `window` object!!! This will mess directly with the **real** `window`: Running `Function('return this')()` will return the `this` object for that context. Since that is `eval`'ed code, it will be the ... `window` object! This also catches all exceptions by setting an handler on `window`, before deleting everything. Also, we go grab the `<html>` element and set it's `innerHTML` to an empty string. This means that your output will work for less than a millisecond. Your code is still executed. It just won't be able to show any output. Maybe you can create a file! If only the API wasn't destroyed... <hr> **Warning**: This causes **huge** strain on your CPU and RAM. Run this at your own risk! It may cause overheating on your CPU and abnormal behaviour on your browser. It forces the code to run as many times as the browser can handle, in a second. This may cause a huge queue of functions to be executed, if it takes longer than the minimum time interval (which is 4ms for Firefox and Google Chrome (source provided by [@somebody][1])) **To stop the process, either run `document.location=document.location` or press <kbd>F5</kbd>**. I am **NOT** responsible for **ANY** hardware or software damage or data loss caused by running this code. [1]: https://codegolf.stackexchange.com/users/39244/somebody