refactor this

[grahamwaters]

https://github.com/grahamwaters/mkyNetwork/blob/7bb88a0103df378f3b88b74787beffa742820a36/scripts/mkyBanker.js#L131

[grahamwaters]

There are a few ways that you could refactor the Reg2Transaction class:

You could refactor the saveTransaction function to use a prepared statement with placeholders for the values being inserted. This would help to prevent SQL injection attacks, and would make the code more readable.

refactor saveTransaction function to use a Promise, which would allow you to use async/await syntax and make the code more readable.

refactor confirmAndSave function to use a Promise, which would allow you to use async/await syntax and make the code more readable.

refactor getWalletPubKey function to use a Promise, which would allow you to use async/await syntax and make the code more readable.

refactor calculateHash function to use a Promise, which would allow you to use async/await syntax and make the code more readable.

refactor Reg2Transaction class to use a more modern JavaScript syntax, such as class fields and arrow functions. This would make the code more concise and easier to read.

refactor Reg2Transaction class to use modern JavaScript features such as the spread operator, which would make the code more concise and easier to read.

refactor Reg2Transaction class to use modern JavaScript features such as destructuring, which would make the code more concise and easier to read.

refactor Reg2Transaction class to use modern JavaScript features such as template strings, which would make the code more concise and easier to read.

refactor Reg2Transaction class to use modern JavaScript features such as the for-of loop, which would make the code more concise and easier to read.