Accurately recognize string that contain character above 0x010000 and array them one by character. Useful for calculate number of characters with string contains emoji.

Convert from binary to base64 encoded DataURL. Default MIME type is application/octet-stream.

Convert from base64 encoded string to binary.

Convert from binary to base64 encoded string.

Convert from blob to specified data type.

Concat multiple buffer sources into single Uint8Array.

Clean up text with fixWidth() and trimExtend().

structuredClone() with argument type added to return value.

Applies Object.freeze() recursively.

Applies Object.seal() recursively.

Decompress "deflate" format binary. Cannot decompress such as "gzip" (RFC1952) or "zlib" (RFC1950) that contain header.

Compress binary with "deflate" format. Does not contain header such as "gzip" (RFC1952) or "zlib" (RFC1950).

Derive SHA2 hash value from binary.

Extended fetch function that can specify response type directly.

Convert half-width Japanese kana to full-width and full-width alphanumeric symbols to half-width.

Generate random binary with any number of bytes.

Convert from hex string to binary.

Convert from binary to hex string.

Define import assertion on dynamic import. Default to JSON.

Decode byte array in "minipack" format.

Concatenate files with "minipack" format.

Create string with zero padding at beginning of number. Output is 2 digits by default.

Decrypt binary. Algorithm is AES-GCM with 128 bits key, 128 bits tag and 96 bits IV. IV is read from head of cipher.

Encrypt binary. Algorithm is AES-GCM with 128 bits key, 128 bits tag and 96 bits IV. IV is prepended to cipher.

Generate exportable public-key pair for ECDH. Curve algorithm is "NIST P-256".

Generate exportable public-key pair for ECDSA. Curve algorithm is "NIST P-256".

Create signature using private-key.

Verify signature using public-key.

Convert from stream to binary.

Convert from binary to stream.

Trim head and tail blank, remove CR and consecutive space (tab, LF) to single space (tab, LF).

Convert from UTF-8 binary to string.

Convert from string to UTF-8 binary.

Returns Date from UNIX time. Note that in seconds not milliseconds.

Return UNIX time in seconds. If no argument will be calculate at current time.

Convert from formatted datetime string such as ISO8601 to UNIX time in seconds.

Assignment of types convertible from blob.

RequestInit with added query property that can specify query string.

Map of fetch response type and string specify them.

Simple filename and binary pair that make up file.

Make interfaces acceptable in Record type arguments.

Serialized CryptoKeyPair.