// save original console object into a variable to try and bring it back later
var savedConsole = console;

// test console.log before we do anything.
console.log("before console freeze");

// set console to an empty function
console.log=function() {}

// make console immutable now that we have transformed it
console = Object.freeze(console);

//  attempt to bring console back from previous console save.
console = savedConsole;

// attempt to use console log, after freeze, and after resetting it
// back to savedConsole
console.log("after console freeze");