Function base64Slice

packages/main/test/pages/diffable-html.js:1012–1018

(buf, start, end)

    }

    function base64Slice (buf, start, end) {
      if (start === 0 && end === buf.length) {
        return base64.fromByteArray(buf)
      } else {
        return base64.fromByteArray(buf.slice(start, end))
      }
    }

    function utf8Slice (buf, start, end) {
      end = Math.min(buf.length, end)