Function encodeBase64

encoding/unstable_base64.ts:82–102

(
  input: string | Uint8Array_ | ArrayBuffer,
  options: Base64Options = {},
)

 * ```
 */
export function encodeBase64(
  input: string | Uint8Array_ | ArrayBuffer,
  options: Base64Options = {},
): string {
  options.alphabet ??= "base64";
  if (typeof input === "string") {
    input = new TextEncoder().encode(input) as Uint8Array_;
  } else if (input instanceof ArrayBuffer) {
    input = new Uint8Array(input);
  }
  let [output, i] = detach(
    input as Uint8Array_,
    calcSizeBase64((input as Uint8Array_).length),
  );
  let o = encode(output, i, 0, alphabet[options.alphabet], padding);
  if (options.alphabet === "base64url") {
    o = output.indexOf(padding, o - 2);
    if (o > 0) output = output.subarray(0, o);
  }
  return new TextDecoder().decode(output);
}

/**
 * `encodeIntoBase64` takes an input source and encodes it as base64 into the