base64Encoding(input: string | ArrayBuffer, encoding?: "std" | "rawstd" | "url" | "rawurl"): string

import util from 'pts/util';

export default function () {
  // SGVsbG8sIHdvcmxk
  console.log(util.base64Encoding('Hello, world')); 
}

import util from 'pts/util';

export default function () {
  // aHR0cDovL3d3dy5leGFtcGxlLmNvbQ==
  console.log(util.base64Encoding('http://www.example.com', 'url')); 
}