webpack/examples/asset-simple/README.md

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This is a very simple example that shows the usage of the asset module type.
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Files can be imported like other modules without file-loader.
# example.js
```javascript
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import png from "./images/file.png";
import jpg from "./images/file.jpg";
import svg from "./images/file.svg";
const container = document.createElement("div");
Object.assign(container.style, {
display: "flex",
justifyContent: "center"
});
document.body.appendChild(container);
function createImageElement(title, src) {
const div = document.createElement("div");
div.style.textAlign = "center";
const h2 = document.createElement("h2");
h2.textContent = title;
div.appendChild(h2);
const img = document.createElement("img");
img.setAttribute("src", src);
img.setAttribute("width", "150");
div.appendChild(img);
container.appendChild(div);
}
[png, jpg, svg].forEach(src => {
createImageElement(src.split(".").pop(), src);
});
```
# webpack.config.js
```javascript
module.exports = {
output: {
assetModuleFilename: "images/[hash][ext]"
},
module: {
rules: [
{
test: /\.(png|jpg|svg)$/,
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type: "asset"
}
]
}
};
```
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# js/output.js
```javascript
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/******/ (() => { // webpackBootstrap
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/******/ "use strict";
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/******/ var __webpack_modules__ = ([
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/* 0 */,
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/* 1 */
/*!*************************!*\
!*** ./images/file.png ***!
\*************************/
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/*! default exports */
/*! exports [not provided] [maybe used (runtime-defined)] */
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/*! runtime requirements: module, __webpack_require__.p, __webpack_require__.* */
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {
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module.exports = __webpack_require__.p + "images/11744e207f673e90d075.png";
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/***/ }),
/* 2 */
/*!*************************!*\
!*** ./images/file.jpg ***!
\*************************/
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/*! default exports */
/*! exports [not provided] [maybe used (runtime-defined)] */
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/*! runtime requirements: module */
/***/ ((module) => {
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module.exports = "data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAASABIAA...4CD/9M//Z";
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/***/ }),
/* 3 */
/*!*************************!*\
!*** ./images/file.svg ***!
\*************************/
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/*! default exports */
/*! exports [not provided] [maybe used (runtime-defined)] */
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/*! runtime requirements: module */
/***/ ((module) => {
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module.exports = "data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDo...vc3ZnPgo=";
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/***/ })
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/******/ ]);
```
<details><summary><code>/* webpack runtime code */</code></summary>
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```js
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/************************************************************************/
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/******/ // The module cache
/******/ var __webpack_module_cache__ = {}; // The require function
/******/
/******/ /******/ function __webpack_require__(moduleId) {
/******/ // Check if module is in cache
/******/ if (__webpack_module_cache__[moduleId]) {
/******/ return __webpack_module_cache__[moduleId].exports;
/******/
} // Create a new module (and put it into the cache)
/******/ /******/ var module = (__webpack_module_cache__[moduleId] = {
/******/ // no module.id needed
/******/ // no module.loaded needed
/******/ exports: {}
/******/
}); // Execute the module function
/******/
/******/ /******/ __webpack_modules__[moduleId](
module,
module.exports,
__webpack_require__
); // Return the exports of the module
/******/
/******/ /******/ return module.exports;
/******/
} /* webpack/runtime/publicPath */
/******/
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/************************************************************************/
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/******/ /******/ (() => {
/******/ __webpack_require__.p = "dist/";
/******/
})();
/******/
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/************************************************************************/
```
</details>
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```js
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(() => {
/*!********************!*\
!*** ./example.js ***!
\********************/
/*! namespace exports */
/*! exports [not provided] [unused] */
/*! runtime requirements: __webpack_require__ */
/* harmony import */ var _images_file_png__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./images/file.png */ 1);
/* harmony import */ var _images_file_jpg__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./images/file.jpg */ 2);
/* harmony import */ var _images_file_svg__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./images/file.svg */ 3);
const container = document.createElement("div");
Object.assign(container.style, {
display: "flex",
justifyContent: "center"
});
document.body.appendChild(container);
function createImageElement(title, src) {
const div = document.createElement("div");
div.style.textAlign = "center";
const h2 = document.createElement("h2");
h2.textContent = title;
div.appendChild(h2);
const img = document.createElement("img");
img.setAttribute("src", src);
img.setAttribute("width", "150");
div.appendChild(img);
container.appendChild(div);
}
[_images_file_png__WEBPACK_IMPORTED_MODULE_0__, _images_file_jpg__WEBPACK_IMPORTED_MODULE_1__, _images_file_svg__WEBPACK_IMPORTED_MODULE_2__].forEach(src => {
createImageElement(src.split(".").pop(), src);
});
})();
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/******/ })()
;
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```
# Info
## webpack output
```
Hash: 0a1b2c3d4e5f6a7b8c9d
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Version: webpack 5.0.0-beta.16
Asset Size
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images/11744e207f673e90d075.png 14.6 KiB [emitted] [immutable] [name: (main)]
output.js 12.3 KiB [emitted] [name: main]
Entrypoint main = output.js (images/11744e207f673e90d075.png)
chunk output.js (main) 9.58 KiB (javascript) 14.6 KiB (asset) 32 bytes (runtime) [entry] [rendered]
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> ./example.js main
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./example.js 742 bytes [built]
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[no exports]
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[no exports used]
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entry ./example.js main
./images/file.jpg 7.92 KiB [built]
[no exports]
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harmony side effect evaluation ./images/file.jpg ./example.js 2:0-36
harmony import specifier ./images/file.jpg ./example.js 28:6-9
./images/file.png 42 bytes (javascript) 14.6 KiB (asset) [built]
[no exports]
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harmony side effect evaluation ./images/file.png ./example.js 1:0-36
harmony import specifier ./images/file.png ./example.js 28:1-4
./images/file.svg 915 bytes [built]
[no exports]
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harmony side effect evaluation ./images/file.svg ./example.js 3:0-36
harmony import specifier ./images/file.svg ./example.js 28:11-14
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+ 1 hidden chunk module
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```