Disable ways to open Inspect Element in JavaScript and HTML

Introduction

I wrote a script that disables practically all the ways to access Inspect Element in JavaScript. Here's what it blocks:

• Right Click
• F12
• Ctrl + Shift + I
• Ctrl + Shift + J
• Ctrl + U

What you need

• Basic JavaScript knowledge
• HTML editor

What you do

Right Click

Copy the HTML below!

Keys

Copy the JavaScript below!

document.onkeydown = function(e) {
if(event.keyCode == 123) {
return false;
}
if(e.ctrlKey && e.shiftKey && e.keyCode == 'I'.charCodeAt(0)){
return false;
}
if(e.ctrlKey && e.shiftKey && e.keyCode == 'J'.charCodeAt(0)){
return false;
}
if(e.ctrlKey && e.keyCode == 'U'.charCodeAt(0)){
return false;
}
}