Function encodeBase64Url

encoding/base64url.ts:39–56

(
  data: ArrayBuffer | Uint8Array | string,
)

 * ```
 */
export function encodeBase64Url(
  data: ArrayBuffer | Uint8Array | string,
): string {
  if (typeof data === "string") {
    data = new TextEncoder().encode(data) as Uint8Array_;
  } else if (data instanceof ArrayBuffer) data = new Uint8Array(data).slice();
  else data = data.slice();
  const [output, i] = detach(
    data as Uint8Array_,
    calcSizeBase64((data as Uint8Array_).length),
  );
  let o = encode(output, i, 0, alphabet, padding);
  o = output.indexOf(padding, o - 2);
  return new TextDecoder().decode(
    // deno-lint-ignore no-explicit-any
    o > 0 ? new Uint8Array((output.buffer as any).transfer(o)) : output,
  );
}

/**
 * Decodes a given base64url-encoded string.