convert buffer to base64 javascript

To convert a buffer to base64 in JavaScript using Node.js, you can follow these steps:

1. Create a Buffer object: Start by creating a Buffer object from the input buffer. The Buffer object is provided by the Node.js Buffer module and is used to work with binary data.

javascript const buffer = Buffer.from(inputBuffer);

In this step, inputBuffer represents the buffer that you want to convert to base64.

1. Encode the buffer to base64: Use the toString() method of the Buffer object to convert the buffer to a base64 encoded string. Pass 'base64' as the encoding parameter.

javascript const base64String = buffer.toString('base64');

The toString() method converts the buffer's content to a string representation. By passing 'base64' as the encoding parameter, the method encodes the buffer using base64 encoding.

1. Output the base64 string: Now that you have the base64 encoded string, you can use it as needed or output it to the console.

javascript console.log(base64String);

In this example, the base64 string is simply printed to the console, but you can store it in a variable or use it in any other way required by your application.

And that's it! Following these steps will allow you to convert a buffer to base64 in Node.js using JavaScript.