mini random string in nodejs

rnd.js

let prevs = [];
while(true) {
const rnd = Buffer.from((10*Math.random()).toString()).toString('base64').substr(3,20)
//NS42MDExOTQwNTEzMjkwMDQ=
//console.log(rnd)
prevs.push(rnd)
let i = prevs.indexOf(rnd);
if(i>-1) {
	prevs[i] += '#'
}
console.log(prevs.join("\n"))
}