webpack/examples/web-worker/README.md

# example.js

``` javascript
var Worker = require("worker!./worker");
var worker = new Worker;
worker.postMessage("b");
worker.onmessage = function(event) {
	var templateB = event.data; // "This text was generated by template B"
}
```

# worker.js

``` javascript
onmessage = function(event) {
	var template = event.data;
	require(["../require.context/templates/" + event.data], function(tmpl) {
		postMessage(tmpl());
	});
}

```

# js/output.js

``` javascript
(function(modules) { // webpackBootstrap
// The module cache
var installedModules = {};

// The require function
function require(moduleId) {
	// Check if module is in cache
	if(installedModules[moduleId])
		return installedModules[moduleId].exports;
	
	// Create a new module (and put it into the cache)
	var module = installedModules[moduleId] = {
		exports: {},
		id: moduleId,
		loaded: false
	};
	
	// Execute the module function
	modules[moduleId].call(null, module, module.exports, require);
	
	// Flag the module as loaded
	module.loaded = true;
	
	// Return the exports of the module
	return module.exports;
}

require.e = function requireEnsure(_, callback) {
	callback.call(null, require);
};
require.modules = modules;
require.cache = installedModules;


// Load entry module and return exports
return require(0);
})
/************************************************************************/
({
// __webpack_public_path__

c: "",
/***/ 0:
/*!********************!*\
  !*** ./example.js ***!
  \********************/
/***/ function(module, exports, require) {

var Worker = require(/*! worker!./worker */ 1);
var worker = new Worker;
worker.postMessage("b");
worker.onmessage = function(event) {
	var templateB = event.data; // "This text was generated by template B"
}

/***/ },

/***/ 1:
/*!**************************************************************************************!*\
  !*** (webpack)/~/worker-loader!./worker.js ***!
  \**************************************************************************************/
/***/ function(module, exports, require) {

module.exports = function() {
	return new Worker(require.modules.c + "hash.worker.js");
};

/***/ }
})
```

# js/[hash].worker.js

``` javascript
(function(modules) { // webpackBootstrap
// The module cache
var installedModules = {};

// object to store loaded chunks
// "1" means "already loaded"
var installedChunks = {0:1};

// The require function
function require(moduleId) {
	// Check if module is in cache
	if(installedModules[moduleId])
		return installedModules[moduleId].exports;
	
	// Create a new module (and put it into the cache)
	var module = installedModules[moduleId] = {
		exports: {},
		id: moduleId,
		loaded: false
	};
	
	// Execute the module function
	modules[moduleId].call(null, module, module.exports, require);
	
	// Flag the module as loaded
	module.loaded = true;
	
	// Return the exports of the module
	return module.exports;
}

require.e = function requireEnsure(chunkId, callback) {
	// "1" is the signal for "already loaded"
	if(!installedChunks[chunkId]) {
		importScripts("" + chunkId + ".hash.worker.js");
	}
	callback.call(null, require);
};
require.modules = modules;
require.cache = installedModules;
this["webpackChunk"] = function webpackChunkCallback(chunkIds, moreModules) {
	for(var moduleId in moreModules)
		modules[moduleId] = moreModules[moduleId];
	while(chunkIds.length)
		installedChunks[chunkIds.pop()] = 1;
};

// Load entry module and return exports
return require(0);
})
/************************************************************************/
({
// __webpack_public_path__

c: "",
/***/ 0:
/*!*******************!*\
  !*** ./worker.js ***!
  \*******************/
/***/ function(module, exports, require) {

onmessage = function(event) {
	var template = event.data;
	require.e/* require */(1, function(require) { var __WEBPACK_AMD_REQUIRE_ARRAY__ = [require(/*! ../require.context/templates */ 1)("./" + event.data)]; (function(tmpl) {
		postMessage(tmpl());
	}.apply(null, __WEBPACK_AMD_REQUIRE_ARRAY__));});
}


/***/ }
})
```

# js/1.[hash].worker.hs

``` javascript
webpackChunk([1],
{

/***/ 1:
/*!*********************************************!*\
  !*** ../require.context/templates ^\.\/.*$ ***!
  \*********************************************/
/***/ function(module, exports, require) {

var map = {
	"./a": 2,
	"./a.js": 2,
	"./b": 3,
	"./b.js": 3,
	"./c": 4,
	"./c.js": 4
};
function webpackContext(req) {
	return require(webpackContextResolve(req));
};
function webpackContextResolve(req) {
	return map[req] || (function() { throw new Error("Cannot find module '" + req + "'.") }());
};
webpackContext.keys = function webpackContextKeys() {
	return Object.keys(map);
};
webpackContext.resolve = webpackContextResolve;
module.exports = webpackContext;


/***/ },

/***/ 2:
/*!*****************************************!*\
  !*** ../require.context/templates/a.js ***!
  \*****************************************/
/***/ function(module, exports, require) {

module.exports = function() {
	return "This text was generated by template A";
}

/***/ },

/***/ 3:
/*!*****************************************!*\
  !*** ../require.context/templates/b.js ***!
  \*****************************************/
/***/ function(module, exports, require) {

module.exports = function() {
	return "This text was generated by template B";
}

/***/ },

/***/ 4:
/*!*****************************************!*\
  !*** ../require.context/templates/c.js ***!
  \*****************************************/
/***/ function(module, exports, require) {

module.exports = function() {
	return "This text was generated by template C";
}

/***/ }

}
)
```

# Info

## Uncompressed

```
Hash: b898016580f5af04be201a389d5bc652
Version: webpack 0.10.0-beta1
Time: 82ms
           Asset  Size  Chunks  Chunk Names
  hash.worker.js  1842                     
1.hash.worker.js  1567                     
       output.js  1727       0  main       
chunk    {0} output.js (main) 302
    [0] ./example.js 206 [built] {0}
    [1] (webpack)/~/worker-loader!./worker.js 96 [not cacheable] [built] {0}
        cjs require worker!./worker [0] ./example.js 1:13-39
Child worker:
    Hash: df2e39abee5b81accea763c727cac801
    Version: webpack 0.10.0-beta1
               Asset  Size  Chunks  Chunk Names
      hash.worker.js  1842       0  main       
    1.hash.worker.js  1567       1             
    chunk    {0} hash.worker.js (main) 168
        [0] ./worker.js 168 [built] {0}
    chunk    {1} 1.hash.worker.js 463 {0} 
        [1] ../require.context/templates ^\.\/.*$ 217 [built] {1}
            amd require context ../require.context/templates [0] ./worker.js 3:1-5:3
        [2] ../require.context/templates/a.js 82 [built] {1}
            context element ./a [1] ../require.context/templates ^\.\/.*$
            context element ./a.js [1] ../require.context/templates ^\.\/.*$
        [3] ../require.context/templates/b.js 82 [built] {1}
            context element ./b [1] ../require.context/templates ^\.\/.*$
            context element ./b.js [1] ../require.context/templates ^\.\/.*$
        [4] ../require.context/templates/c.js 82 [built] {1}
            context element ./c [1] ../require.context/templates ^\.\/.*$
            context element ./c.js [1] ../require.context/templates ^\.\/.*$
```

## Minimized (uglify-js, no zip)

```
Hash: b898016580f5af04be201a389d5bc652
Version: webpack 0.10.0-beta1
Time: 226ms
           Asset  Size  Chunks  Chunk Names
  hash.worker.js   519                     
1.hash.worker.js   531                     
       output.js   418       0  main       
chunk    {0} output.js (main) 302
    [0] ./example.js 206 [built] {0}
    [1] (webpack)/~/worker-loader!./worker.js 96 [not cacheable] [built] {0}
        cjs require worker!./worker [0] ./example.js 1:13-39
Child worker:
    Hash: df2e39abee5b81accea763c727cac801
    Version: webpack 0.10.0-beta1
               Asset  Size  Chunks  Chunk Names
      hash.worker.js   519       0  main       
    1.hash.worker.js   531       1             
    chunk    {0} hash.worker.js (main) 168
        [0] ./worker.js 168 [built] {0}
    chunk    {1} 1.hash.worker.js 463 {0} 
        [1] ../require.context/templates ^\.\/.*$ 217 [built] {1}
            amd require context ../require.context/templates [0] ./worker.js 3:1-5:3
        [2] ../require.context/templates/a.js 82 [built] {1}
            context element ./a [1] ../require.context/templates ^\.\/.*$
            context element ./a.js [1] ../require.context/templates ^\.\/.*$
        [3] ../require.context/templates/b.js 82 [built] {1}
            context element ./b [1] ../require.context/templates ^\.\/.*$
            context element ./b.js [1] ../require.context/templates ^\.\/.*$
        [4] ../require.context/templates/c.js 82 [built] {1}
            context element ./c [1] ../require.context/templates ^\.\/.*$
            context element ./c.js [1] ../require.context/templates ^\.\/.*$
```