export type TypedArray = | Int8Array | Uint8Array | Uint8ClampedArray | Int16Array | Uint16Array | Int32Array | Uint32Array | Float32Array | Float64Array | BigInt64Array | BigUint64Array; /** Check if the given value is an instance of `Uint8Array`. Replacement for [`Buffer.isBuffer()`](https://nodejs.org/api/buffer.html#static-method-bufferisbufferobj). @example ``` import {isUint8Array} from 'uint8array-extras'; console.log(isUint8Array(new Uint8Array())); //=> true console.log(isUint8Array(Buffer.from('x'))); //=> true console.log(isUint8Array(new ArrayBuffer(10))); //=> false ``` */ export function isUint8Array(value: unknown): value is Uint8Array; /** Throw a `TypeError` if the given value is not an instance of `Uint8Array`. @example ``` import {assertUint8Array} from 'uint8array-extras'; try { assertUint8Array(new ArrayBuffer(10)); // Throws a TypeError } catch (error) { console.error(error.message); } ``` */ export function assertUint8Array(value: unknown): asserts value is Uint8Array; /** Convert a value to a `Uint8Array` without copying its data. This can be useful for converting a `Buffer` to a pure `Uint8Array`. `Buffer` is already an `Uint8Array` subclass, but [`Buffer` alters some behavior](https://sindresorhus.com/blog/goodbye-nodejs-buffer), so it can be useful to cast it to a pure `Uint8Array` before returning it. Tip: If you want a copy, just call `.slice()` on the return value. */ export function toUint8Array(value: TypedArray | ArrayBuffer | DataView): Uint8Array; /** Concatenate the given arrays into a new array. If `arrays` is empty, it will return a zero-sized `Uint8Array`. If `totalLength` is not specified, it is calculated from summing the lengths of the given arrays. Replacement for [`Buffer.concat()`](https://nodejs.org/api/buffer.html#static-method-bufferconcatlist-totallength). @example ``` import {concatUint8Arrays} from 'uint8array-extras'; const a = new Uint8Array([1, 2, 3]); const b = new Uint8Array([4, 5, 6]); console.log(concatUint8Arrays([a, b])); //=> Uint8Array [1, 2, 3, 4, 5, 6] ``` */ export function concatUint8Arrays(arrays: Uint8Array[], totalLength?: number): Uint8Array; /** Check if two arrays are identical by verifying that they contain the same bytes in the same sequence. Replacement for [`Buffer#equals()`](https://nodejs.org/api/buffer.html#bufequalsotherbuffer). @example ``` import {areUint8ArraysEqual} from 'uint8array-extras'; const a = new Uint8Array([1, 2, 3]); const b = new Uint8Array([1, 2, 3]); const c = new Uint8Array([4, 5, 6]); console.log(areUint8ArraysEqual(a, b)); //=> true console.log(areUint8ArraysEqual(a, c)); //=> false ``` */ export function areUint8ArraysEqual(a: Uint8Array, b: Uint8Array): boolean; /** Compare two arrays and indicate their relative order or equality. Useful for sorting. Replacement for [`Buffer.compare()`](https://nodejs.org/api/buffer.html#static-method-buffercomparebuf1-buf2). @example ``` import {compareUint8Arrays} from 'uint8array-extras'; const array1 = new Uint8Array([1, 2, 3]); const array2 = new Uint8Array([4, 5, 6]); const array3 = new Uint8Array([7, 8, 9]); [array3, array1, array2].sort(compareUint8Arrays); //=> [[1, 2, 3], [4, 5, 6], [7, 8, 9]] ``` */ export function compareUint8Arrays(a: Uint8Array, b: Uint8Array): 0 | 1 | -1; /** Convert a `Uint8Array` to a string. @param encoding - The [encoding](https://developer.mozilla.org/en-US/docs/Web/API/Encoding_API/Encodings) to convert from. Default: `'utf8'` Replacement for [`Buffer#toString()`](https://nodejs.org/api/buffer.html#buftostringencoding-start-end). For the `encoding` parameter, `latin1` should be used instead of `binary` and `utf-16le` instead of `utf16le`. @example ``` import {uint8ArrayToString} from 'uint8array-extras'; const byteArray = new Uint8Array([72, 101, 108, 108, 111]); console.log(uint8ArrayToString(byteArray)); //=> 'Hello' const zh = new Uint8Array([167, 65, 166, 110]); console.log(uint8ArrayToString(zh, 'big5')); //=> '你好' const ja = new Uint8Array([130, 177, 130, 241, 130, 201, 130, 191, 130, 205]); console.log(uint8ArrayToString(ja, 'shift-jis')); //=> 'こんにちは' ``` */ export function uint8ArrayToString(array: Uint8Array | ArrayBuffer, encoding?: string): string; /** Convert a string to a `Uint8Array` (using UTF-8 encoding). Replacement for [`Buffer.from('Hello')`](https://nodejs.org/api/buffer.html#static-method-bufferfromstring-encoding). @example ``` import {stringToUint8Array} from 'uint8array-extras'; console.log(stringToUint8Array('Hello')); //=> Uint8Array [72, 101, 108, 108, 111] ``` */ export function stringToUint8Array(string: string): Uint8Array; /** Convert a `Uint8Array` to a Base64-encoded string. Specify `{urlSafe: true}` to get a [Base64URL](https://base64.guru/standards/base64url)-encoded string. Replacement for [`Buffer#toString('base64')`](https://nodejs.org/api/buffer.html#buftostringencoding-start-end). @example ``` import {uint8ArrayToBase64} from 'uint8array-extras'; const byteArray = new Uint8Array([72, 101, 108, 108, 111]); console.log(uint8ArrayToBase64(byteArray)); //=> 'SGVsbG8=' ``` */ export function uint8ArrayToBase64(array: Uint8Array, options?: {urlSafe: boolean}): string; /** Convert a Base64-encoded or [Base64URL](https://base64.guru/standards/base64url)-encoded string to a `Uint8Array`. Replacement for [`Buffer.from('SGVsbG8=', 'base64')`](https://nodejs.org/api/buffer.html#static-method-bufferfromstring-encoding). @example ``` import {base64ToUint8Array} from 'uint8array-extras'; console.log(base64ToUint8Array('SGVsbG8=')); //=> Uint8Array [72, 101, 108, 108, 111] ``` */ export function base64ToUint8Array(string: string): Uint8Array; /** Encode a string to Base64-encoded string. Specify `{urlSafe: true}` to get a [Base64URL](https://base64.guru/standards/base64url)-encoded string. Replacement for `Buffer.from('Hello').toString('base64')` and [`btoa()`](https://developer.mozilla.org/en-US/docs/Web/API/btoa). @example ``` import {stringToBase64} from 'uint8array-extras'; console.log(stringToBase64('Hello')); //=> 'SGVsbG8=' ``` */ export function stringToBase64(string: string, options?: {urlSafe: boolean}): string; /** Decode a Base64-encoded or [Base64URL](https://base64.guru/standards/base64url)-encoded string to a string. Replacement for `Buffer.from('SGVsbG8=', 'base64').toString()` and [`atob()`](https://developer.mozilla.org/en-US/docs/Web/API/atob). @example ``` import {base64ToString} from 'uint8array-extras'; console.log(base64ToString('SGVsbG8=')); //=> 'Hello' ``` */ export function base64ToString(base64String: string): string; /** Convert a `Uint8Array` to a Hex string. Replacement for [`Buffer#toString('hex')`](https://nodejs.org/api/buffer.html#buftostringencoding-start-end). @example ``` import {uint8ArrayToHex} from 'uint8array-extras'; const byteArray = new Uint8Array([72, 101, 108, 108, 111]); console.log(uint8ArrayToHex(byteArray)); //=> '48656c6c6f' ``` */ export function uint8ArrayToHex(array: Uint8Array): string; /** Convert a Hex string to a `Uint8Array`. Replacement for [`Buffer.from('48656c6c6f', 'hex')`](https://nodejs.org/api/buffer.html#static-method-bufferfromstring-encoding). @example ``` import {hexToUint8Array} from 'uint8array-extras'; console.log(hexToUint8Array('48656c6c6f')); //=> Uint8Array [72, 101, 108, 108, 111] ``` */ export function hexToUint8Array(hexString: string): Uint8Array; /** Read `DataView#byteLength` number of bytes from the given view, up to 48-bit. Replacement for [`Buffer#readUintBE`](https://nodejs.org/api/buffer.html#bufreadintbeoffset-bytelength) @example ``` import {getUintBE} from 'uint8array-extras'; const byteArray = new Uint8Array([0x12, 0x34, 0x56, 0x78, 0x90, 0xab]); console.log(getUintBE(new DataView(byteArray.buffer))); //=> 20015998341291 ``` */ export function getUintBE(view: DataView): number; // eslint-disable-line @typescript-eslint/naming-convention /** Find the index of the first occurrence of the given sequence of bytes (`value`) within the given `Uint8Array` (`array`). Replacement for [`Buffer#indexOf`](https://nodejs.org/api/buffer.html#bufindexofvalue-byteoffset-encoding). `Uint8Array#indexOf` only takes a number which is different from Buffer's `indexOf` implementation. @example ``` import {indexOf} from 'uint8array-extras'; const byteArray = new Uint8Array([0x12, 0x34, 0x56, 0x78, 0x90, 0xab, 0xcd, 0xef]); console.log(indexOf(byteArray, new Uint8Array([0x78, 0x90]))); //=> 3 ``` */ export function indexOf(array: Uint8Array, value: Uint8Array): number; /** Checks if the given sequence of bytes (`value`) is within the given `Uint8Array` (`array`). Returns true if the value is included, otherwise false. Replacement for [`Buffer#includes`](https://nodejs.org/api/buffer.html#bufincludesvalue-byteoffset-encoding). `Uint8Array#includes` only takes a number which is different from Buffer's `includes` implementation. ``` import {includes} from 'uint8array-extras'; const byteArray = new Uint8Array([0x12, 0x34, 0x56, 0x78, 0x90, 0xab, 0xcd, 0xef]); console.log(includes(byteArray, new Uint8Array([0x78, 0x90]))); //=> true ``` */ export function includes(array: Uint8Array, value: Uint8Array): boolean;