De-obfuscating javascript code in a browser is possible.
If you've ever had a chance to look at the underlying code, you know how complicated it is.
The code becomes smaller in order to reduce the overall time it takes to download a web page.The programming logic is hidden from the public because it is difficult to understand.
If you want to make it more human-readable, you can either de-obfuscate or reverse-engineer the code.Here is how.
If you have a browser that supports it, open the web page that has the Javascript you are trying to decode.Press F12 to open Developer Tools.Click on the De-obfuscate source to switch to the script's tab.That is it!
You can copy-paste the Javascript code that you are trying to understand.You can hit the Beautify button.The mystery was solved.