I am working with Solana Blockchain in JavaScript.
I have the following key string address that I want to decode or convert to BASE58 to UINT8 Decoder. How can I achieve that in JavaScript or even via jQuery?
<script>
var address = "9vpsmXhZYMpvhCKiVoX5U8b1iKpfwJaFpPEEXF7hRm9N";
//var bs58_decode(address);
/*
My result should look something like below
{
132,167, 105, 60, 17, 211, 120, 243, 197, 99, 113, 34, 76, 127, 190, 18, 91, 246,
121, 93, 189, 55, 165, 129, 196, 104, 25, 157, 209, 168, 165, 149,
]
*/
</script>
All credits goes to the author of this simple lib which you can find here https://gist.github.com/diafygi/90a3e80ca1c2793220e5/
var from_b58 = function(
S, //Base58 encoded string input
A //Base58 characters (i.e. "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz")
) {
var d = [], //the array for storing the stream of decoded bytes
b = [], //the result byte array that will be returned
i, //the iterator variable for the base58 string
j, //the iterator variable for the byte array (d)
c, //the carry amount variable that is used to overflow from the current byte to the next byte
n; //a temporary placeholder variable for the current byte
for(i in S) { //loop through each base58 character in the input string
j = 0, //reset the byte iterator
c = A.indexOf( S[i] ); //set the initial carry amount equal to the current base58 digit
if(c < 0) //see if the base58 digit lookup is invalid (-1)
return undefined; //if invalid base58 digit, bail out and return undefined
c || b.length ^ i ? i : b.push(0); //prepend the result array with a zero if the base58 digit is zero and non-zero characters haven't been seen yet (to ensure correct decode length)
while(j in d || c) { //start looping through the bytes until there are no more bytes and no carry amount
n = d[j]; //set the placeholder for the current byte
n = n ? n * 58 + c : c; //shift the current byte 58 units and add the carry amount (or just add the carry amount if this is a new byte)
c = n >> 8; //find the new carry amount (1-byte shift of current byte value)
d[j] = n % 256; //reset the current byte to the remainder (the carry amount will pass on the overflow)
j++ //iterate to the next byte
}
}
while(j--) //since the byte array is backwards, loop through it in reverse order
b.push( d[j] ); //append each byte to the result
return new Uint8Array(b) //return the final byte array in Uint8Array format
}
// example
var mapping = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
console.log(from_b58("9vpsmXhZYMpvhCKiVoX5U8b1iKpfwJaFpPEEXF7hRm9N", mapping));