base45 typescript implementation

Simple typescript base45 (charset of Qr codes, alphanumeric mode) encoder/decoder.

This library exports an ES module, together with the required type annotations.

Example

``ts
import * as b45 from "base45-ts";

const buffer : Uint8Array = new TextEncoder().encode('Hello!')
const e : string = b45.encode(buffer);
console.log(e); // Will output %69 VD92EX0"

const d = b45.decode('%69 VD92EX0')
console.log(d); // will output 'Uint8Array(7) [72, 101, 108, 108, 111, 33, 33]'

const d = b45.decodeToUtf8String('%69 VD92EX0')
console.log(d); // will output 'Hello!'
`

Exported functions

$3

`ts
decode(utf8StringArg: string): Uint8Array
`

Decode a base45-encoded string

#### Parameters
- utf8StringArg, string: A base45-encoded string

#### Returns
An Uint8Array containing the decoded data

$3

`ts
decodeToUtf8String(utf8StringArg: string): string
`

Same as decode, but returns a string instead of a typed array. If the base45-encoded data was not valid UTF-8, throws an error.

#### Parameters
- utf8StringArg, string: base45-encoded string representing an utf8 string

#### Returns
the decoded string

$3

`ts
encode(byteArrayArg: Uint8Array | number[]): string
`

Encode binary data to base45

#### Parameters
- byteArrayArg: Uint8Array | number[] An array of bytes to encode

#### Returns

a base45-encoded string

Development

This library doesn't have any dependency.

- Build the code with npm run build
- Test with npm test`