Use base-x about js-multibase

[daviddias]

@theobat thank you for this #7 ❤️

[theobat]

hi @diasdavid, it seems it can be any of each base's version since it takes the alphabet as an argument :

var BASE58_BITCOIN = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
var BASE58_FLICKR = '123456789abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ'
var BASE58_RIPPLE = 'rpshnaf39wBUDNEGHJKLM4PQRST7VWXYZ2bcdeCg65jkm8oFqi1tuvAxyz'
var bs58btc = require('base-x')(BASE58_BITCOIN)
var bs58flickr = require('base-x')(BASE58_FLICKR)
var bs58ripple = require('base-x')(BASE58_RIPPLE)
// encode-decode with the alphabet you'd like

So I guess we only have to map the alphabets to the constants in Constants.js ?

[daviddias]

@theobat awesome! Yeah, seems like that then, constants.js can be the human readable name, the short version and the encoder/decoder instance. Would you like to contribute with PR adding this?

Thank you for checking how to make this work :)

[theobat]

@diasdavid Sure! I'll try to open a PR today, but I thought it could be nice to use an object-oriented declaration of the Bases such as jbenet mentioned here. It won't be as useful as in Go but I think it would clarify the initialization. What do you think ?

Would be something like :

const constants = {
  base1: Base('1', '1'),
  base2: Base('0', '01'),
  base8: Base('7', '01234567'),
  // ... Base(code, alphabet) ... etc
}