Node.js only supports the little-endian variant of UTF-16. 'latin1': Latin-1 stands for ISO-8859-1. This character encoding only supports the Unicode characters from U+0000 to U+00FF. Each character is encoded using a single byte. Characters that do not fit into that range are truncated and will be mapped to characters in that range. Converting a Buffer into a string using one of the above is referred to as decoding, and converting a string into a Buffer is referred to as encoding.

Buffers are similar to arrays of integers but are fixed-length and correspond to raw memory allocations outside the V8 JavaScript engine. Node.js provides the Buffer class as a global object, so you don't need to require or import it explicitly.

June 4, 2024 - When the data processing unit cannot accept any more data streams, excess data is stored in a buffer until the data processing unit is ready to receive more data. Node.js servers most often need to read and write to the filesystem and, of course, files are stored in binaries.

July 22, 2025 - Buffers in Node.js are as close to the metal as you can get in JavaScript, raw binary data, fast, easy to transport and transform.

July 4, 2024 - This will be a prelude to the series on demystifying Node.js streams. A Buffer in Node.js is a temporary storage area in memory used to hold raw binary data.

The Buffer class is a subclass of JavaScript's Uint8Array class and extends it with methods that cover additional use cases. Node.js APIs accept plain Uint8Array s wherever Buffers are supported as well.

April 15, 2026 - Buffer in Node.js is a built-in object used to handle and manipulate raw binary data, especially when working with streams, files, or network operations.

An object of buffer class in Node.js used to represent a fixed-length sequence of bytes. It stores raw data similar to an array of integers but corresponds to a raw memory allocation outside the V8 heap.

October 24, 2023 - The Buffer type has been the cornerstone for binary data handling in Node.js since the beginning. However, these days we have Uint8Array, which is a native JavaScript type and works cross-platform. While Buffer is an instance of Uint8Array, it introduces numerous methods that are not available in other JavaScript environments.

February 8, 2023 - So, what exactly is a Buffer? Simply put, a Buffer is a way to store and manipulate binary data in Node.js. Binary data refers to data that consists of binary values, as opposed to text data, which consists of characters and symbols.

July 8, 2026 - The 'node:buffer' module provides a way to handle raw binary data directly in memory. Buffers are instances of the Buffer class, which is a fixed-length sequence of bytes.The module includes methods to create, read, write, concatenate, and compare ...

October 16, 2024 - Buffers are an essential concept ... which is typically used to handle text-based data, Node.js provides buffers to manage raw binary data....

With TypedArray now available, the Buffer class implements the Uint8Array API in a manner that is more optimized and suitable for Node.js.

May 1, 2020 - A buffer is a space in memory (typically RAM) that stores binary data. In Node.js, we can access these spaces of memory with the built-in Buffer class. Buffers store a sequence of integers, similar to an array in JavaScript.

The buffer module from node.js, for the browser. Contribute to feross/buffer development by creating an account on GitHub.

March 27, 2024 - Node.js is a runtime environment that allows you to run JavaScript on the server side, not just in the browser. Within Node.js, a buffer is a global object that provides a way to work with binary data directly.

May 4, 2025 - A buffer is a space in memory that is used to temporarily store binary data. The Buffer class in Node.js is used to perform operations on binary data.

December 14, 2023 - Node.js is a runtime environment that allows you to run JavaScript on the server side, not just in the browser. Within Node.js, a buffer is a global object that provides a way to work with binary data directly.

August 10, 2026 - A Buffer is a subclass of Uint8Array, so it has typed-array methods and properties. Node.js APIs generally accept a plain Uint8Array where they accept a buffer.