webpack/examples/harmony/README.md

12 KiB

example.js

import { increment as inc } from './increment';
var a = 1;
inc(a); // 2

// async loading
import("./async-loaded").then(function(asyncLoaded) {
	console.log(asyncLoaded);
});

increment.js

import { add } from './math';
export function increment(val) {
    return add(val, 1);
};

dist/output.js

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/******/ ([
/* 0 */
/*!**********************!*\
  !*** ./increment.js ***!
  \**********************/
/*! exports provided: increment */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "increment", function() { return increment; });
/* harmony import */ var _math__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./math */ 1);

function increment(val) {
    return Object(_math__WEBPACK_IMPORTED_MODULE_0__["add"])(val, 1);
};


/***/ }),
/* 1 */
/*!*****************!*\
  !*** ./math.js ***!
  \*****************/
/*! exports provided: add */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "add", function() { return add; });
function add() {
	var sum = 0, i = 0, args = arguments, l = args.length;
	while (i < l) {
		sum += args[i++];
	}
	return sum;
}


/***/ }),
/* 2 */
/*!********************!*\
  !*** ./example.js ***!
  \********************/
/*! no exports provided */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony import */ var _increment__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./increment */ 0);

var a = 1;
Object(_increment__WEBPACK_IMPORTED_MODULE_0__["increment"])(a); // 2

// async loading
__webpack_require__.e(/*! import() */ 1).then(__webpack_require__.bind(null, /*! ./async-loaded */ 3)).then(function(asyncLoaded) {
	console.log(asyncLoaded);
});


/***/ })
/******/ ]);

Info

Unoptimized

Hash: 0a1b2c3d4e5f6a7b8c9d
Version: webpack 4.29.6
      Asset       Size  Chunks             Chunk Names
1.output.js  478 bytes       1  [emitted]  
  output.js   9.48 KiB       0  [emitted]  main
Entrypoint main = output.js
chunk    {0} output.js (main) 400 bytes >{1}< [entry] [rendered]
    > ./example.js main
 [0] ./increment.js 90 bytes {0} [built]
     [exports: increment]
     harmony side effect evaluation ./increment [2] ./example.js 1:0-47
     harmony import specifier ./increment [2] ./example.js 3:0-3
 [1] ./math.js 135 bytes {0} [built]
     [exports: add]
     harmony side effect evaluation ./math [0] ./increment.js 1:0-29
     harmony import specifier ./math [0] ./increment.js 3:11-14
 [2] ./example.js 175 bytes {0} [built]
     [no exports]
     single entry ./example.js  main
chunk    {1} 1.output.js 24 bytes <{0}> [rendered]
    > ./async-loaded [2] ./example.js 6:0-24
 [3] ./async-loaded.js 24 bytes {1} [built]
     [exports: answer]
     import() ./async-loaded [2] ./example.js 6:0-24

Production mode

Hash: 0a1b2c3d4e5f6a7b8c9d
Version: webpack 4.29.6
      Asset       Size  Chunks             Chunk Names
1.output.js  144 bytes       1  [emitted]  
  output.js    2.1 KiB       0  [emitted]  main
Entrypoint main = output.js
chunk    {0} output.js (main) 400 bytes >{1}< [entry] [rendered]
    > ./example.js main
 [0] ./example.js + 2 modules 400 bytes {0} [built]
     [no exports]
     single entry ./example.js  main
     | ./example.js 175 bytes [built]
     |     [no exports]
     |     single entry ./example.js  main
     | ./increment.js 90 bytes [built]
     |     [exports: increment]
     |     [all exports used]
     |     harmony side effect evaluation ./increment  ./example.js 1:0-47
     |     harmony import specifier ./increment  ./example.js 3:0-3
     | ./math.js 135 bytes [built]
     |     [exports: add]
     |     [all exports used]
     |     harmony side effect evaluation ./math  ./increment.js 1:0-29
     |     harmony import specifier ./math  ./increment.js 3:11-14
chunk    {1} 1.output.js 24 bytes <{0}> [rendered]
    > ./async-loaded [] 6:0-24
 [1] ./async-loaded.js 24 bytes {1} [built]
     [exports: answer]
     import() ./async-loaded  ./example.js 6:0-24