Provides Base64 decoding and Base64 encoding methods.

Isomorphic encoding

Base64 decoder

The TransformStream that decodes a stream of Base64-encoded string into Uint8Array stream.

Base64 encoder

The TransformStream that encodes a stream of Uint8Array into Base64-encoded string stream.

The byte stream reading task.

The InvalidStateError represents an error when an object is in an invalid state.

The loading task.

The object representation of MIME type. The MediaType instances are immutable.

Percent decoder

Percent encoder

If the globalThis has a Blob, or if the node:buffer package has a Blob, then the Blob constructor. Otherwise referencing it will throw a ReferenceError.

If the globalThis has a crypto, or if the node:crypto package has a webcrypto, then the Crypto object. Otherwise referencing it will throw a ReferenceError.

If the globalThis has a File, or if the node:buffer package has a File, then the File constructor. Otherwise referencing it will throw a ReferenceError.

If the globalThis has a ProgressEvent, then the ProgressEvent constructor. Otherwise the polyfill of ProgressEvent constructor.

The options for RFC 4648 Base64.

The options for RFC 4648 Base64url.

The maximum value of 64-bit unsigned integer.

The minimum value of 64-bit unsigned integer.

The number of bits used to represent an 64-bit unsigned integer.

MD5 digest algorithm

SHA-1 digest algorithm

SHA-256 digest algorithm

SHA-384 digest algorithm

SHA-512 digest algorithm

The header field name.

The request method name.

The loading status.

The options for the C0 controls percent-encode

The options for the application/x-www-form-urlencoded percent-encode

The options for the URL component percent-encode

The options for the URL fragment percent-encode

The options for the URL path percent-encode

The options for the URL query percent-encode

The options for the URL special-query percent-encode

The options for the URL userinfo percent-encode

The zero-length string.

The maximum value of 8-bit unsigned integer.

The minimum value of 8-bit unsigned integer.

The number of bits used to represent an 8-bit unsigned integer.

Decodes a Base64-encoded string into an Uint8Array.

Encodes the specified byte sequence into a string.

Determines whether the passed test is a 64-bit unsigned integer.

Implements isomorphic decode defined in WHATWG Infra Standard.

Implements isomorphic encode defined in WHATWG Infra Standard.

Decodes a Percent-encoded string into an Uint8Array.

Encodes the specified byte sequence into a string.

Determines whether the test is a non-negative safe integer.

Determines whether the test is a positive safe integer.

Determines whether the passed test is an 8-bit unsigned integer.

Digest algorithm

The type of the ArrayBufferView constructor.

The type of the TypedArray constructor.

The object with the following optional fields. The defaults are the values that conforms to the RFC 4648 Base64 specification.

The type of 64-bit unsigned integer.

The object with the following optional fields.

The ReadableStream of Uint8Array or the async iterator of Uint8Array.

The loading options.

The MediaType equivalent comparison option.

The string tuple represents a MIME type parameter.

The object with the following optional fields.

The type of 8-bit unsigned integer.