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WebAssembly.instance.prototype

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

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

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

Description

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

Properties

Instance.prototype.constructor
Returns the function that created this object's instance. By default this is the WebAssembly.Instance() constructor.
Instance.prototype.exports Read only
Returns an object containing as its members all the functions exported from the WebAssembly module instance, to allow them to be accessed and used by JavaScript.

Methods

None.

Specifications

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

Browser compatibility

Feature Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 57 16 522 No 44 11
Feature Android webview Chrome for Android Edge mobile Firefox for Android IE mobile Opera Android iOS Safari
Basic support 57 57 Yes1 522 No ? 11

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

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

See also

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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/Instance/prototype