SharedArrayBuffer.prototype

The SharedArrayBuffer.prototype property represents the prototype for the SharedArrayBuffer object.

Description

SharedArrayBuffer instances inherit from SharedArrayBuffer.prototype. As with all constructors, you can change the constructor's prototype object to make changes to all SharedArrayBuffer instances.

Properties

SharedArrayBuffer.prototype.constructor

Specifies the function that creates an object's prototype. The initial value is the standard built-in SharedArrayBuffer constructor.

SharedArrayBuffer.prototype.byteLength Read only

The size, in bytes, of the array. This is established when the array is constructed and cannot be changed. Read only.

Methods

SharedArrayBuffer.prototype.slice(begin, end)

Returns a new SharedArrayBuffer whose contents are a copy of this SharedArrayBuffer's bytes from begin, inclusive, up to end, exclusive. If either begin or end is negative, it refers to an index from the end of the array, as opposed to from the beginning.

Specifications

Specification	Status	Comment
ECMAScript Shared Memory and Atomics The definition of 'SharedArrayBuffer.prototype' in that specification.	Draft	Initial definition.

Browser compatibility

[1] In Firefox version 46 until version 51, this feature was disabled by a preference setting. In about:config, set javascript.options.shared_memory to true.

See also

• SharedArrayBuffer