`@push.rocks/smartbuffer` is designed to make handling `ArrayBufferLike` structures easier and more intuitive, specifically in TypeScript and in environments that support ECMAScript modules. This includes web browsers, Node.js (with ESM support enabled), and Deno.
### Basic Concepts
Before diving into the usage examples, let’s clarify what `ArrayBufferLike` structures are. In JavaScript, the `ArrayBuffer` object is used to represent a generic, fixed-length raw binary data buffer. An `ArrayBufferLike` is any data structure that can be viewed as representing such binary data. The `Buffer` class in Node.js and `Uint8Array` are typical examples of `ArrayBufferLike` structures.
### Importing the Module
First, import the functions you need from the module:
```typescript
import { arrayBufferToBase64, base64ToArrayBuffer, isBufferLike } from '@push.rocks/smartbuffer';
```
### Converting `ArrayBuffer` to Base64 String
Often, you’ll need to convert binary data represented by an `ArrayBuffer` into a Base64 encoded string. This is especially common when you need to transmit binary data over a medium that only supports text content, such as JSON.
console.log(base64String); // Output will be a Base64 encoded string of the ArrayBuffer content
```
### Converting a Base64 String to `ArrayBuffer`
Conversely, if you have a Base64 encoded string that represents binary data, you can convert it back to an `ArrayBuffer` or a `Uint8Array` for further manipulation or use within your application.
```typescript
const base64String = "aGVsbG8gd29ybGQ="; // "hello world" in Base64
console.log(new TextDecoder().decode(arrayBuffer)); // Expects to output "hello world"
```
### Checking if an Object is `ArrayBufferLike`
Sometimes you may need to validate whether a given object is an `ArrayBufferLike` structure (`ArrayBuffer`, `Uint8Array`, `Buffer`, etc.). This is useful in functions that are meant to operate on binary data and need to ensure the data passed to them is in the correct format.
```typescript
const buffer = new Uint8Array([1, 2, 3, 4]);
const notBuffer = [1, 2, 3, 4];
console.log(isBufferLike(buffer)); // true
console.log(isBufferLike(notBuffer)); // false
```
### Practical Applications
The functionality provided by `@push.rocks/smartbuffer` is particularly helpful in applications dealing with file operations, network communications, or any context where binary data needs to be processed, transformed, or transmitted.
For instance, when receiving files as part of a web API, converting these files to Base64 strings for storage or transmission is a common requirement. Similarly, when working with WebSockets or server-sent events, `ArrayBuffer` objects and their views (`Uint8Array`, etc.) are commonly used to handle binary data efficiently.
By providing utilities to convert between binary data and Base64 strings, as well as methods to check data types, `@push.rocks/smartbuffer` simplifies the implementation of complex data handling operations. Whether you are working with IoT devices, implementing a web application that manipulates images or audio files, or dealing with any form of binary data, `@push.rocks/smartbuffer` is a valuable tool to have in your toolkit.
Remember to thoroughly test your applications to ensure that data integrity is maintained throughout all operations involving `ArrayBufferLike` structures.
---
The provided examples cover the core features of `@push.rocks/smartbuffer`. For advanced use cases, refer to the module's documentation and explore the source code to better understand its capabilities and how it can be integrated into your specific projects.
## License and Legal Information
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