How to edit /hack any website using JavaScript

Here's the code, use with care:

[robertb]

I might as well just use inspect element it's a lot easier

[sonicfanguyable]

this is quite helpful especially when your grades are bad. :)

[MultiAla]

This edits page but not hack. When you reload page it resets! It's a javascript! Never can hack site with this code!

[AdamGeenen]

doesnt mork do u delete whats on the search bar before you write the code

[ufc]

Hello bro Can you please help me with hacking a website admin I really need this done I will pay you no problem I just need to get this done

[pcwiz]

lol wow.. this isnt hacking... you are allowed to do this and yes it resets because its just a java script setting code to were you can change it to your likings on a page and when you refresh the page all the changes will be gone and no one other then you can see them so this is basically a waist of time... sorry to disappoint anyone.

[KisrDeveloper]

oh omg...delete on the tittle hack..
if u want hack you must hack server but that is very hard...

[samm_]

im just....wow....this dislike button works