Describe the differences between using `Buffer.from()` and directly assigning a string to a buffer, specifically related to memory allocation and encoding.

Buffers in Node.js are used to represent binary data. There's no direct way to 'assign' a string *toa buffer; you must *createa buffer from a string using a specific method. `Buffer.from()` is the standard and recommended way to create a new Buffer instance from a string, array, or another buffer. It allocates a new buffer in memory and copies the data from the source into it. Importantly, `Buffer.from()` allows you to specify the encoding of the string (e.g., 'utf8', 'ascii', 'latin1', '....