Issue with Extra Characters in Decoded Base64 String

[sinanouri]

Hi, I'm decoding forward payload data but I'm getting extra characters in the decoded string:

const base64String = 'te6cckEBAQEAEQAAHgAAAABIZWxsbywgVE9OIb7WCx4=';
const decodedBase64 = TonWeb.utils.base64ToBytes(base64String);
const decodedString = new TextDecoder().decode(decodedBase64);
console.log(decodedString); // ��rAHello, TON! ��

Can anyone help me understand why extra characters are appearing in the decoded string and how to fix this issue?

[dizzycoder1112]

Because the string is boc
you need to parse it by cell and pass the opcode by slice.loadUint(32)

const base64String = 'te6cckEBAQEAEQAAHgAAAABIZWxsbywgVE9OIb7WCx4=';
const cell = Cell.fromBase64(base64String);
console.log(cell) // x{0000000048656C6C6F2C20544F4E21}
const slice = cell.beginParse()
slice.loadUint(32)
console.log(slice.loadStringTail()); // Hello, TON!