It is an array of bytes, often referred to in other languages as a "byte array". You cannot directly manipulate the contents of an ArrayBuffer; instead, you create one of the typed array objects or a DataView object which represents the buffer in a specific format, and use that to read and ...

July 11, 2025 - A buffer is a storage in physical memory used to temporarily store data while it is being transferred from one place to another.

November 7, 2025 - The arrayBuffer() method of the Response interface takes a Response stream and reads it to completion. It returns a promise that resolves with an ArrayBuffer.

July 10, 2025 - The buffer accessor property of DataView instances returns the ArrayBuffer or SharedArrayBuffer referenced by this view at construction time.

Returns the time ranges that are currently buffered in the SourceBuffer.

The Buffer class is a subclass of JavaScript's <Uint8Array> class and extends it with methods that cover additional use cases.

A buffer is a storage in physical memory used to temporarily store data while it is being transferred from one place to another.

Depending on whether or not the memory was constructed with `shared: true`, the buffer is either an {{jsxref("ArrayBuffer")}} or a {{jsxref("SharedArrayBuffer")}}. ... The following example (see [memory.html](https://github.com/mdn/webassembly-examples/blob/main/js-api-examples/memory.html) on GitHub, and [view it live also](https://mdn.github.io/webassembly-examples/js-api-examples/memory.html)) fetches and instantiates the loaded memory.wasm bytecode using the [`WebAssembly.instantiateStreaming()`](/en-US/docs/WebAssembly/Reference/JavaScript_interface/instantiateStreaming_static) function, while importing the memory created in the line above.

The buffer property of the AudioBufferSourceNode interface provides the ability to play back audio using an AudioBuffer as the source of the sound data.

February 10, 2026 - The SharedArrayBuffer object is used to represent a generic raw binary data buffer, similar to the ArrayBuffer object, but in a way that they can be used to create views on shared memory. A SharedArrayBuffer is not a Transferable Object, unlike an ArrayBuffer which is transferable.

July 10, 2025 - The buffer property is an accessor property whose set accessor function is undefined, meaning that you can only read this property. The value is established when the TypedArray is constructed and cannot be changed.

The Buffer.from() method creates a new buffer filled with the specified string, array, or buffer.

April 28, 2025 - The buffer property of the ConvolverNode interface represents a mono, stereo, or 4-channel AudioBuffer containing the (possibly multichannel) impulse response used by the ConvolverNode to create the reverb effect.

"Can I use" provides up-to-date browser support tables for support of front-end web technologies on desktop and mobile web browsers.

The ArrayBuffer object is used to represent a generic raw binary data buffer.

October 30, 2025 - The ArrayBuffer() constructor creates ArrayBuffer objects.

The `buffer` property is an accessor property whose set accessor function is `undefined`, meaning that you can only read this property. The value is established when the _TypedArray_ is constructed and cannot be changed.

May 11, 2017 - The ArrayBuffer object is used to represent a generic, fixed-length raw binary data buffer. You cannot directly manipulate the contents of an ArrayBuffer ; instead, you create one of the typed array objects or a DataView object which represents the buffer in a specific format, and use that ...

Code examples that accompany various MDN DOM and Web API documentation pages - dom-examples/sourcebuffer at main · mdn/dom-examples

The buffer contains the audio signal waveform encoded as a series of amplitudes in the following format: non-interleaved IEEE754 32-bit linear PCM with a nominal range between -1 and +1, that is, a 32-bit floating point buffer, with each sample between -1.0 and 1.0.