this implementation is not lossles

[pabx06]

example

var packbits = require('../');

function code(p){
var out = packbits.encode(p);
var out2 = packbits.decode(out);
console.log(${p} enc=> ${out} dec=> ${out2});

}

for( var i=0;i<=255;i++){
var ar = new Uint8Array(1);
ar[0] = i;
code(Buffer.from(ar).toString('hex'));
}

output :

.
.
.
36 enc=> 0054 dec=> 54
37 enc=> 0055 dec=> 55
.
.
.
fe enc=> 0054 dec=> 54
ff enc=> 0055 dec=> 55