This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The WebAssembly.Table.prototype property represents the prototype for the WebAssembly.Table() constructor.

Property attributes of WebAssembly.Table.prototype
Writable no
Enumerable no
Configurable no


All WebAssembly.Table instances inherit from Table.prototype. The prototype object of the WebAssembly.Table() constructor can be modified to affect all WebAssembly.Table instances.


Returns the function that created this object's instance. By default this is the WebAssembly.Table() constructor.
Returns the length of the table, i.e. the number of references stored in the table.


Accessor function — gets a reference stored at a given index.
Increases the size of the Table instance by a specified number of references.
Mutates a reference stored at a given index to a different value.


Specification Status Comment
WebAssembly JavaScript API
The definition of 'Table' in that specification.
Draft Initial draft definition.

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support5716522 No4411
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidIE mobileOpera AndroidiOS Safari
Basic support5757 Yes1522 No ?11

1. This feature is behind the Experimental JavaScript Features preference.

2. Disabled in the Firefox 52 Extended Support Release (ESR).

See also

Document Tags and Contributors

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