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WebAssembly.module.imports

The WebAssembly.imports() function returns an array containing descriptions of all the declared imports of the given Module.

Syntax

var custSec = WebAssembly.Module.imports(module);

Parameters

module: A WebAssembly.Module object.

Return value

An array containing objects representing the imported functions of the given module.

Exceptions

If module is not a WebAssembly.Module object instance, a TypeError is thrown.

Example

The following example (see imports.html source code; see it live also) compiles the loaded simple.wasm module. This module is then queried for its imports.

WebAssembly.compileStreaming(fetch('simple.wasm'))
.then(function(mod) {
  var imports = WebAssembly.Module.imports(mod);
  console.log(imports[0]);
});

The output looks like this:

{ module: "imports", name: "imported_func", kind: "function" }

Specifications

Specification	Status	Comment
WebAssembly JavaScript Interface The definition of 'imports()' in that specification.	Working Draft	Initial draft definition.

Browser compatibilityUpdate compatibility data on GitHub

	Desktop
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
Basic support	57	16	52 52 Disabled in the Firefox 52 Extended Support Release (ESR).	No	44	11

	Mobile
	Android webview	Chrome for Android	Edge Mobile	Firefox for Android	Opera for Android	iOS Safari	Samsung Internet
Basic support	57	57	Yes Disabled Yes Disabled Disabled This feature is behind the `Experimental JavaScript Features` preference.	52 52 Disabled in the Firefox 52 Extended Support Release (ESR).	?	11	7.0

	Server
	Node.js
Basic support	8.0.0