JS Encryption and decryption

Recently in the study of JS encryption and decryption problems, the Internet search out a lot of methods, but do not know which one will be more useful. Here is found today some of the Base64 encryption and decryption of the JS code, has been tested, can be used, but many online encryption and decryption tools, this way encrypted JS code can be directly decrypted by the tool. I also write a small encryption and decryption tool in this way, interested can go to my GitHub to see the relevant code, are relatively simple. URL is: Https://github.com/shenhf187/EncryptionAndDecryptionTool

JS Encryption and decryption