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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 | 1x 1x 21x 21x | import { type TextEncoding } from './@types/text-encoding.ts';
import { base64Config, decode } from './base64.ts';
// cspell:ignore Hdvcmxk
/**
* Decode a [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) encoded string and
* output in binary format.
* @param input - A string containing the Base64 encoded data to decode.
* @returns An `Uint8Array` containing the decoded data.
* @example
* ```typescript
* decodeBase64('SGVsbG8sIHdvcmxkIQ==');
* // Uint8Array([72, 101, 108, 108, 111, 44, 32, 119, 111, 114, 108, 100, 33])
* ```
*/
export function decodeBase64(input: string): Uint8Array;
/**
* Decode a [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) encoded string as a
* string with the specified text encoding.
* @param input - A string containing the Base64 encoded data to decode.
* @param encoding - The text encoding to use for the decoded string.
* @returns An `string` containing the decoded data.
* @example
* ```typescript
* decodeBase64('SGVsbG8sIHdvcmxkIQ==', 'utf-8');
* // "Hello, world!"
* ```
*/
export function decodeBase64(input: string, encoding: TextEncoding): string;
/**
* Decodes a string of data which has been encoded using
* [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) encoding.
*
* You can use the **decodeBase64** method to encode and transmit data which may otherwise cause
* communication problems, then transmit it and use the {@link encodeBase64} method to decode the data again.
* For example, you can encode, transmit, and decode control characters.
* @remarks Whitespace withing the Base64 encoded string is ignored.
* @throws `TypeError` If the input string is not correctly encoded.
* @group Binary
* @category Encoding
*/
export function decodeBase64(input: string, encoding?: TextEncoding): Uint8Array | string {
return encoding ? decode(base64Config, input, encoding) : decode(base64Config, input);
}
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