There are two main types of deobfuscators available:
Static Deobfuscators - These tools examine the original source code, and then generate new code that makes it more readable. This means that they cannot handle any dynamic code (e.g., function calls) that have been obfuscated.
When you have deployed your application, you will not be able to debug it in production mode because some browsers do not allow debugging over HTTPS connections.
Step 1: Find a deobfuscator tool online
The first step is to find a deobfuscator that works for your needs. There are many different types of obfuscators and they all work differently.
Some of them are better than others, but some can be used in very specific cases. You need to find one that matches your needs.
Step 2: Copy the code from your file
Once you have found an obfuscator that works for your needs,
you need to copy the code from your file and paste it into the tool and finally press the deobfuscate button.