The **``length``** property in the Buffer module of Node.js denotes the number of data-elements stored inside a buffer.

The length of the following buffer is *5*, as it contains *5* values:


# Syntax
To access the length property of a buffer, the following syntax is used:

```JS
buffer.length
```
The identifier ``buffer`` is the name of a pre-allocated buffer.
# Return value
It returns the size or length of the buffer.
# Example
The following program allocates a buffer filled with a custom string using the ``Buffer.from`` function. The identifier for it is ``buffer``. The ``console.log`` function is used to print the value of the ``length`` property of ``buffer`` on the console:

var buffer = Buffer.from('Educative');

console.log(buffer.length);

What is the length property in Buffer module of Node.js?

Indicates the number of data elements in a Node.js Buffer. Access via `buffer.length`.