Remove all content using pure JS

Question

I\'m looking for a way to remove the entire content of a web page using pure Javascript -- no libraries.

I tried:

document.documentElement.innerHTML          


        

Answer 1

REMOVE EVERYTHING BUT --- !DOCTYPE html ---

var l = document.childNodes.length;    
while (l > 1) { var i = document.childNodes[1]; document.removeChild(i); l--; }

TESTED ON FIREFOX WEB INSPECTOR - childNodes[1] IS --- !DOCTYPE html ---