webpack/webpack

For questions please post on Stack Overflow and use the 'webpack' tag (http://stackoverflow.com/tags/webpack).

horologix

@horologix_gitlab

This is probably a silly question, but are production builds meant to be built from production? Or is it that you build dev/prod in development and choose which one to serve?

horologix

@horologix_gitlab

The example from the DefinePlugin page shows

new webpack.DefinePlugin({
  'process.env.NODE_ENV': JSON.stringify(process.env.NODE_ENV)
});

which doesn't make sense unless you were to build from production.

joe

@joepagan

Hey, I am trying to use a webpack build hash as an ENV var to my app for cache busting, however, the suggestions I have found so far are limited and do not work.
This SO post tries to do the same thing: https://stackoverflow.com/questions/39082976/how-to-pass-the-build-hash-as-an-environment-variable-in-webpack
However, the ExtendedAPIPlugin which is supposed to make a new variable __webpack_hash__ available is not defined when I load & run it.
Does anyone have any further suggestions?

romantic艾克

@1sunzichen

hello

James Drawneek

@jmdrawneek

Anyone got any ideas why my webpack entrypoint is no longer firing? I was just doing some refactoring to try to squeeze some more performance out of my setup and now it doen't execute.

The entry point is within the main file and the main file is running, but it doesn't seem to hit my code.

Does anyone know where webpack calls the entry point js? I've dropped some breakpoints in to check what's running but webpack is a bit of a maze

James Drawneek

@jmdrawneek

My entry point is listed in deferredModules, is that correct?

James Drawneek

@jmdrawneek

So it looks like another entry point as appeared?! called loaders - any idea where this has come from? I only noticed from looking at the stats printing in the console

Ugh 🤦🏻‍♂️ there was a chunk filter out some required files

Xixiang Chen

@nelsonchen90

Hi :wave:
the recent upgrade 3.7.1 of webpack-dev-middleware causes the following error. When I downgrade to 3.7.0 everything is fine:

✖ ｢wdm｣: TypeError: Cannot read property 'tapAsync' of undefined
    at compiler.hooks.emit.tap (****/webpack-dev-middleware/lib/fs.js:18:37)
    at _next3 (eval at create (****/tapable/lib/HookCodeFactory.js:33:10), <anonymous>:10:1)
    at _err3 (eval at create (****/tapable/lib/HookCodeFactory.js:33:10), <anonymous>:25:1)
    at callback (****/copy-webpack-plugin/dist/index.js:77:17)
    at ****/copy-webpack-plugin/dist/index.js:118:24
    at <anonymous>

any ideas?

Alexander Akait

@alexander-akait

update webpack to latest version

Ashish J Galagali

@ashishjg21

can anyone plz guide me to install exercism

joe

@joepagan

Ok I think I misunderstood how to use the ExtendedAPIPlugin, I believe was was to make __webpack_hash__ available within my build is that correct?
I want to get access to the hash at the webpack config level, is that possible?

lwwen

@lwwen

hello everyone,who knows that i write have some error?

OluwatosinAdegoke

@OluwatosinAdegoke

Does webpack affect CSS even without the css-loader and style-loader installed?

John Marinelli

@johnmarinelli

@OluwatosinAdegoke don't think so

@nelsonchen90 what is your webpack version? ./node_modules/.bin/webpack --version

Kevin Pinto

@ShakurOo

Hello guys, I setup a react webpack project + typescript. But after the compilation, I have a Cannot read Component of undefined.
So i put <script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.8.6/umd/react.production.min.js"></script> in my index.html, and that does the job. But i would like to know why webpack doesn't not integrate react (from node_modules) itself in the finalbundle.js ? :O

John Marinelli

@johnmarinelli

@ShakurOo post relevant parts of your config

Kevin Pinto

@ShakurOo

Ok I found the problem... And it was me. I putted this entries in my webpack.config.js :

    externals: {
      'react': 'React',
      'react-dom': 'ReactDOM'
    },

This lines skip the node_modules importations and use global variables instead ^^"

thx @johnmarinelli

Chad Wilken

@chadwilken

I just upgraded to webpack 4 from 3 and I keep getting errors about my redux actions. I export them all from an index file that imports them using the import * as projectActions from './projects'. The error is "export 'addPhotosToReport' was not found in 'actions'". I have been Googling and tinkering but can't figure it out. Any ideas?

Chad Wilken

@chadwilken

Ahh it looks like you just do export * from './projects' now

Andrii Tsok

@AndriiTsok

Hello, community! I have a question about bundling dependency js library (it is not an NPM lib and it was bundled with webpack for browser <script>.. just a .js file) into my new library that I build using typescript.

How to define and inject this .js library into my final bundle?

Luke Kang

@kidkkr

TerserPlugin 2.0.0 has an issue with

        cache: true,
        parallel: true,
        sourceMap: true

option. FYI

Alexander Akait

@alexander-akait

@kidkkr issue? What issue?

Cache and parallel true by default

Luke Kang

@kidkkr

It omits node_modules (I guess) code.

Alexander Akait

@alexander-akait

What? No

We uglify you bundled code

Luke Kang

@kidkkr

Umm.. It minify codes like starts like this:

=n(19)},function(e,t,n){"use strict";(function(e){n.d(t,"a",function(){return rt}),n.d(t,"b",function(){return we}),n.d(t,"d",function(){return ot});var r=n(3),i=n.n(r),o=n(14),a=n.n(o),l=n(0),s=n.n(l),u=n(15),c=n(4),f=n(5),d=(n(27),n(17)),p=n(18),h=function(e,t){for(var n=

why is =n(19)}, presented, I don't know why

Alexander Akait

@alexander-akait

it is require('something')

We don't change in minify algorithm, just bump node version and set some options by default

Luke Kang

@kidkkr

Thank you! I will try

faligowski

@faligowski

I'm getting started with Webpack, but in the beginning have some troubles. When deleted [script src="...lodash" and push index.html into dist folder where is main.js, I have "Cannot GET /index.html"

I'm learning step by step with tutorial here

Alexander Akait

@alexander-akait

contentBase

faligowski

@faligowski

What exactly should I do?

Alexander Akait

@alexander-akait

put index.html in you root folder

faligowski

@faligowski

Doesn't work. Did everything like in the tutorial

Chris

@ipatch

@faligowski think you forgot to post the link to the tutorial your following, also i'd follow the docs posted on the official webpack site as opposed to following some third party tutorial that more than likely is out of date because things in webpack's world move fast ...really really fast

Question when using webpack and starting / stopping the server for whatever reason, more often then not I'm editing the actual webpack configuration file, and when i stop then start webpack will launch a window / tab in my default browser but will launch a completely new tab as opposed to reusing the existing open tab.

Has anyone developed a solution where if I stop a webpack dev server and have an existing tab that was associated with a running dev server instance that when i startup webpack again it will "intellegently" (and i use that term loosely) check to see if there is a tab open with the domain or socket that was being used and reconnect to the existing tab? it's quite tedious to close, open, shuffle tabs while working with configuration changes that require the dev server to stopped then started.

Alexander Akait

@alexander-akait

It is impossible to solve

browsers doesn't provide api for these actions

you can create custom script

but it will be platform depended

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