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webpack/examples/wasm-simple
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Tobias Koppers d28592e9da update examples 2021-08-20 08:12:50 +02:00
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README.md update examples 2021-08-20 08:12:50 +02:00
add.wasm added WebAssembly Proof of Concept 2017-11-10 09:17:11 +01:00
build.js added WebAssembly Proof of Concept 2017-11-10 09:17:11 +01:00
example.js update examples 2020-08-04 14:15:08 +02:00
factorial.wasm use i32 instead of f64 in wasm code 2017-11-10 09:17:12 +01:00
fibonacci.wasm use i32 instead of f64 in wasm code 2017-11-10 09:17:12 +01:00
index.html add side-by-side wasm support based on async modules 2019-06-04 23:28:56 +02:00
math.js update examples 2020-08-04 14:15:08 +02:00
template.md update examples 2020-08-04 14:15:08 +02:00
test.filter.js allow to filter examples in test suite 2017-12-21 08:51:07 +01:00
webpack.config.js update examples 2020-08-04 14:15:08 +02:00

README.md

This is a simple example that shows the usage of WebAssembly.

WebAssembly modules can be imported like other async modules with import or import(). When importing, they are downloaded and instantiated in a streaming way.

example.js

import { add } from "./add.wasm";
import {
	add as mathAdd,
	factorial,
	factorialJavascript,
	fibonacci,
	fibonacciJavascript
} from "./math";

console.log(add(22, 2200));
console.log(mathAdd(10, 101));
console.log(factorial(15));
console.log(factorialJavascript(15));
console.log(fibonacci(15));
console.log(fibonacciJavascript(15));
timed("wasm factorial", () => factorial(1500));
timed("js factorial", () => factorialJavascript(1500));
timed("wasm fibonacci", () => fibonacci(22));
timed("js fibonacci", () => fibonacciJavascript(22));

function timed(name, fn) {
	if (!console.time || !console.timeEnd) return fn();
	// warmup
	for (var i = 0; i < 10; i++) fn();
	console.time(name);
	for (var i = 0; i < 5000; i++) fn();
	console.timeEnd(name);
}

math.js

import { add } from "./add.wasm";
import { factorial } from "./factorial.wasm";
import { fibonacci } from "./fibonacci.wasm";

export { add, factorial, fibonacci };

export function factorialJavascript(i) {
	if (i < 1) return 1;
	return i * factorialJavascript(i - 1);
}

export function fibonacciJavascript(i) {
	if (i < 2) return 1;
	return fibonacciJavascript(i - 1) + fibonacciJavascript(i - 2);
}

dist/output.js

/******/ (() => { // webpackBootstrap
/******/ 	"use strict";
/******/ 	var __webpack_modules__ = ([
/* 0 */
/*!********************!*\
  !*** ./example.js ***!
  \********************/
/*! namespace exports */
/*! exports [not provided] [no usage info] */
/*! runtime requirements: __webpack_require__, __webpack_require__.r, __webpack_exports__, module, __webpack_require__.a, __webpack_require__.* */
/***/ ((module, __webpack_exports__, __webpack_require__) => {

__webpack_require__.a(module, async (__webpack_handle_async_dependencies__) => {
__webpack_require__.r(__webpack_exports__);
/* harmony import */ var _add_wasm__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./add.wasm */ 1);
/* harmony import */ var _math__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./math */ 2);
var __webpack_async_dependencies__ = __webpack_handle_async_dependencies__([_math__WEBPACK_IMPORTED_MODULE_1__, _add_wasm__WEBPACK_IMPORTED_MODULE_0__]);
([_math__WEBPACK_IMPORTED_MODULE_1__, _add_wasm__WEBPACK_IMPORTED_MODULE_0__] = __webpack_async_dependencies__.then ? await __webpack_async_dependencies__ : __webpack_async_dependencies__);



console.log((0,_add_wasm__WEBPACK_IMPORTED_MODULE_0__.add)(22, 2200));
console.log((0,_math__WEBPACK_IMPORTED_MODULE_1__.add)(10, 101));
console.log((0,_math__WEBPACK_IMPORTED_MODULE_1__.factorial)(15));
console.log((0,_math__WEBPACK_IMPORTED_MODULE_1__.factorialJavascript)(15));
console.log((0,_math__WEBPACK_IMPORTED_MODULE_1__.fibonacci)(15));
console.log((0,_math__WEBPACK_IMPORTED_MODULE_1__.fibonacciJavascript)(15));
timed("wasm factorial", () => (0,_math__WEBPACK_IMPORTED_MODULE_1__.factorial)(1500));
timed("js factorial", () => (0,_math__WEBPACK_IMPORTED_MODULE_1__.factorialJavascript)(1500));
timed("wasm fibonacci", () => (0,_math__WEBPACK_IMPORTED_MODULE_1__.fibonacci)(22));
timed("js fibonacci", () => (0,_math__WEBPACK_IMPORTED_MODULE_1__.fibonacciJavascript)(22));

function timed(name, fn) {
	if (!console.time || !console.timeEnd) return fn();
	// warmup
	for (var i = 0; i < 10; i++) fn();
	console.time(name);
	for (var i = 0; i < 5000; i++) fn();
	console.timeEnd(name);
}

});

/***/ }),
/* 1 */
/*!******************!*\
  !*** ./add.wasm ***!
  \******************/
/*! namespace exports */
/*! export add [provided] [no usage info] [provision prevents renaming (no use info)] */
/*! other exports [not provided] [no usage info] */
/*! runtime requirements: module, module.id, __webpack_exports__, __webpack_require__.v, __webpack_require__.* */
/***/ ((module, exports, __webpack_require__) => {

module.exports = __webpack_require__.v(exports, module.id, "0eaeab8b9fa3cef100d1");

/***/ }),
/* 2 */
/*!*****************!*\
  !*** ./math.js ***!
  \*****************/
/*! namespace exports */
/*! export add [provided] [no usage info] [missing usage info prevents renaming] -> ./add.wasm .add */
/*! export factorial [provided] [no usage info] [missing usage info prevents renaming] -> ./factorial.wasm .factorial */
/*! export factorialJavascript [provided] [no usage info] [missing usage info prevents renaming] */
/*! export fibonacci [provided] [no usage info] [missing usage info prevents renaming] -> ./fibonacci.wasm .fibonacci */
/*! export fibonacciJavascript [provided] [no usage info] [missing usage info prevents renaming] */
/*! other exports [not provided] [no usage info] */
/*! runtime requirements: __webpack_require__, __webpack_exports__, __webpack_require__.d, __webpack_require__.r, module, __webpack_require__.a, __webpack_require__.* */
/***/ ((module, __webpack_exports__, __webpack_require__) => {

__webpack_require__.a(module, async (__webpack_handle_async_dependencies__) => {
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "add": () => (/* reexport safe */ _add_wasm__WEBPACK_IMPORTED_MODULE_0__.add),
/* harmony export */   "factorial": () => (/* reexport safe */ _factorial_wasm__WEBPACK_IMPORTED_MODULE_1__.factorial),
/* harmony export */   "fibonacci": () => (/* reexport safe */ _fibonacci_wasm__WEBPACK_IMPORTED_MODULE_2__.fibonacci),
/* harmony export */   "factorialJavascript": () => (/* binding */ factorialJavascript),
/* harmony export */   "fibonacciJavascript": () => (/* binding */ fibonacciJavascript)
/* harmony export */ });
/* harmony import */ var _add_wasm__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./add.wasm */ 1);
/* harmony import */ var _factorial_wasm__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./factorial.wasm */ 3);
/* harmony import */ var _fibonacci_wasm__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./fibonacci.wasm */ 4);
var __webpack_async_dependencies__ = __webpack_handle_async_dependencies__([_fibonacci_wasm__WEBPACK_IMPORTED_MODULE_2__, _factorial_wasm__WEBPACK_IMPORTED_MODULE_1__, _add_wasm__WEBPACK_IMPORTED_MODULE_0__]);
([_fibonacci_wasm__WEBPACK_IMPORTED_MODULE_2__, _factorial_wasm__WEBPACK_IMPORTED_MODULE_1__, _add_wasm__WEBPACK_IMPORTED_MODULE_0__] = __webpack_async_dependencies__.then ? await __webpack_async_dependencies__ : __webpack_async_dependencies__);






function factorialJavascript(i) {
	if (i < 1) return 1;
	return i * factorialJavascript(i - 1);
}

function fibonacciJavascript(i) {
	if (i < 2) return 1;
	return fibonacciJavascript(i - 1) + fibonacciJavascript(i - 2);
}

});

/***/ }),
/* 3 */
/*!************************!*\
  !*** ./factorial.wasm ***!
  \************************/
/*! namespace exports */
/*! export factorial [provided] [no usage info] [provision prevents renaming (no use info)] */
/*! other exports [not provided] [no usage info] */
/*! runtime requirements: module, module.id, __webpack_exports__, __webpack_require__.v, __webpack_require__.* */
/***/ ((module, exports, __webpack_require__) => {

module.exports = __webpack_require__.v(exports, module.id, "35a58b7c95860d720a3c");

/***/ }),
/* 4 */
/*!************************!*\
  !*** ./fibonacci.wasm ***!
  \************************/
/*! namespace exports */
/*! export fibonacci [provided] [no usage info] [provision prevents renaming (no use info)] */
/*! other exports [not provided] [no usage info] */
/*! runtime requirements: module, module.id, __webpack_exports__, __webpack_require__.v, __webpack_require__.* */
/***/ ((module, exports, __webpack_require__) => {

module.exports = __webpack_require__.v(exports, module.id, "5a6637e8d63cdf9c72da");

/***/ })
/******/ 	]);
/* webpack runtime code */ 
/************************************************************************/
/******/ 	// The module cache
/******/ 	var __webpack_module_cache__ = {};
/******/ 	
/******/ 	// The require function
/******/ 	function __webpack_require__(moduleId) {
/******/ 		// Check if module is in cache
/******/ 		var cachedModule = __webpack_module_cache__[moduleId];
/******/ 		if (cachedModule !== undefined) {
/******/ 			return cachedModule.exports;
/******/ 		}
/******/ 		// Create a new module (and put it into the cache)
/******/ 		var module = __webpack_module_cache__[moduleId] = {
/******/ 			id: moduleId,
/******/ 			// no module.loaded needed
/******/ 			exports: {}
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/******/ 		// Execute the module function
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/******/ 		var webpackThen = typeof Symbol === "function" ? Symbol("webpack then") : "__webpack_then__";
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/******/ 		var completeFunction = (fn) => (!--fn.r && fn());
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/******/ 				if(dep[webpackThen]) return dep;
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/******/ 								ret[webpackThen] = (fn) => (completeFunction(fn));
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/******/ 			promise[webpackExports] = exports;
/******/ 			promise[webpackThen] = (fn, rejectFn) => {
/******/ 				if (isEvaluating) { return completeFunction(fn); }
/******/ 				if (currentDeps) whenAll(currentDeps, fn, rejectFn);
/******/ 				queueFunction(queue, fn);
/******/ 				promise.catch(rejectFn);
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/******/ 			module.exports = promise;
/******/ 			body((deps) => {
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/******/ 				currentDeps = wrapDeps(deps);
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/******/ 					whenAll(currentDeps, fn, reject);
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/******/ 				return fn.r ? promise : result;
/******/ 			}).then(outerResolve, reject);
/******/ 			isEvaluating = false;
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/******/ 	
/******/ 	/* webpack/runtime/define property getters */
/******/ 	(() => {
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/******/ 	
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/******/ 	// This entry module used 'module' so it can't be inlined
/******/ 	var __webpack_exports__ = __webpack_require__(0);
/******/ 	
/******/ })()
;

Info

Unoptimized

asset output.js 12.6 KiB [emitted] (name: main)
asset 5a6637e8d63cdf9c72da.wasm 67 bytes [emitted] [immutable] (auxiliary name: main)
asset 35a58b7c95860d720a3c.wasm 62 bytes [emitted] [immutable] (auxiliary name: main)
asset 0eaeab8b9fa3cef100d1.wasm 41 bytes [emitted] [immutable] (auxiliary name: main)
chunk (runtime: main) output.js (main) 1.27 KiB (javascript) 170 bytes (webassembly) 3.35 KiB (runtime) [entry] [rendered]
  > ./example.js main
  runtime modules 3.35 KiB 6 modules
  dependent modules 552 bytes (javascript) 170 bytes (webassembly) [dependent] 4 modules
  ./example.js 753 bytes [built] [code generated]
    [no exports]
    [used exports unknown]
    entry ./example.js main
webpack 5.51.1 compiled successfully

Production mode

asset output.js 2.44 KiB [emitted] [minimized] (name: main)
asset 67aca7a09456080b5120.wasm 67 bytes [emitted] [immutable] (auxiliary name: main)
asset 36825f9224dde8d88de0.wasm 62 bytes [emitted] [immutable] (auxiliary name: main)
asset 10cff76bc58b7aa8f9cb.wasm 41 bytes [emitted] [immutable] (auxiliary name: main)
chunk (runtime: main) output.js (main) 1.27 KiB (javascript) 170 bytes (webassembly) 3.08 KiB (runtime) [entry] [rendered]
  > ./example.js main
  runtime modules 3.08 KiB 5 modules
  dependent modules 552 bytes (javascript) 170 bytes (webassembly) [dependent] 4 modules
  ./example.js 753 bytes [built] [code generated]
    [no exports]
    [no exports used]
    entry ./example.js main
webpack 5.51.1 compiled successfully