javascript - Unable to access function bundled by WebPack -


i have simple webapp webpack bundle javascript 1 bundle.js file used various html page.

unfortunately, if specify in webpack config file want use standalone library (librarytarget , library) can used script tag, doesn't work. seems encapsulated in module functions not available.

index.html

<!doctype html> <html lang="en"> <head>     <title>play! webpack</title>     <meta charset="utf-8">     <meta http-equiv="x-ua-compatible" content="ie=edge">     <meta name="viewport" content="width=device-width, initial-scale=1"> </head>     <body>     <app>         loading...     </app>     <script type="text/javascript" src="/bundles/bundle.js" charset="utf-8"></script>     <button type="button" onclick="ui.helloworld()">click me!</button>     </body> </html>

entry , output section of webpack.base.config.js

entry: [         './app/main.js'     ],     output: {         path: buildpath,         filename: 'bundle.js',         sourcemapfilename: "bundle.map",         publicpath: '/bundles/',         librarytarget: 'var',         library: 'ui'     },

main.js (entry point)

function helloworld() {     alert( 'hello, world!' ); }

when clicking on button, receive error in console:

uncaught typeerror: ui.helloworld not function     @ htmlbuttonelement.onclick (localhost/:14)

for additionnal info, content of bundle.js file looks that:

var ui = ...  (stuff here)  function(module, exports, __webpack_require__) {      __webpack_require__(79);      function helloworld() {         alert('hello, world!');     }  /***/ }

the ui object exported bundled library same exported object of entrypoint module. if not explicitly export function module in webpack, defined within module's scope (which 1 of primary features of javascript modules). need assign module.exports object able access outside module:

/** main.js **/  function helloworld() {     alert( 'hello, world!' ); }  // module.exports here (in entrypoint module) same object // ui in page's scope (outside webpack) module.exports = {   helloword: helloworld, };

then can access other scripts:

<script>   ui.helloworld(); // 'ui.helloworld' same                    // 'module.exports.helloworld' above </script>

if don't explicitly set module.exports in entrypoint module, default empty object { }.


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