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The buffer accessor property represents the ArrayBuffer or SharedArrayBuffer referenced by the DataView at construction time.




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 DataView is constructed and cannot be changed.


Using the buffer property

var buffer = new ArrayBuffer(8);
var dataview = new DataView(buffer);
dataview.buffer; // ArrayBuffer { byteLength: 8 }


Specification Status Comment
ECMAScript 2015 (6th Edition, ECMA-262)
The definition of 'DataView.prototype.buffer' in that specification.
Standard Initial definition.
ECMAScript Latest Draft (ECMA-262)
The definition of 'DataView.prototype.buffer' in that specification.

Browser compatibility

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari
Basic support 9.0 12 15.0 (15.0) 10 12.1 5.1
SharedArrayBuffer No support No support 53 (53) [1] No support No support No support
Feature Android Chrome for Android Edge Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support 4.0 (Yes) (Yes) 15.0 (15) ? 12.0 4.2
SharedArrayBuffer No support No support No support 53 (53) [1] No support No support No support

[1] The Shared memory feature is disabled by a preference setting. In about:config, set javascript.options.shared_memory to true

See also

Document Tags and Contributors

 Contributors to this page: jameshkramer, fscholz
 Last updated by: jameshkramer,