Questions tagged [babel-preset-env]
73 questions
0
votes
1 answer
Webpack Multiple presets with babel loader along with key value pair
have a question in mind while working, i found it difficult to configure preset for babel loader
do have a look and let me know what needs to be done in order to fix it. i am not about to write the whole webpack file just part of it where i found…
Amit Chauhan
- 71
- 1
- 8
0
votes
1 answer
Can I list the polyfills applied to each webpack entry points by babel/preset-env with useBuiltIns:usage?
I have a small Javascript app that executes on webpages. It can run in most modern browsers but not old ones like IE (because it uses some features like Promise ). I can use babel/preset-env with useBuiltIns:usage with browserlist config to add…
David Lin
- 13,168
- 5
- 46
- 46
0
votes
1 answer
Unexpected token { with Webpack 4 and @babel/preset-env
This is my .babelrc:
{
"presets": [
"@babel/preset-env",
"@babel/preset-react"
]
}
Here's where the error comes from. \client\src\components\AddBook.js:
const { handleSubmit, pristine, reset, submitting } = this.props;
The error…
El Anonimo
- 1,759
- 3
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- 38
0
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0 answers
Preset files are not allowed to export objects, only functions. React Native
I'm getting this weird error and cant find a way to clear it.
its regarding some babel preset
Please find package.json file
{
"name": "wallet",
"version": "0.0.1",
"private": true,
"scripts": {
"start": "node…
Kartiikeya
- 2,358
- 7
- 33
- 68
0
votes
1 answer
@babel/preset-env loaded with wrong babel version after upgrade babel 6 to 7
I tried to upgrade my babel from 6 to 7, but I encounter this issue.
/Users/darryl/Documents/Github/apps/node_modules/babel-register/node_modules/babel-core/lib/transformation/file/options/option-manager.js:328
throw e;
^
Error:…
Darryl RN
- 7,432
- 4
- 26
- 46
0
votes
1 answer
babel-loader is ignored by webpack config
I'm having some issues with babel-loader and cannot for the life of me figure out what is wrong. It does not seem like babel-loader is transpiling at all and I have a suspicion that the babel-loader is not even being used. The result is the same…
Vegard Stenvik
- 46
- 4
0
votes
1 answer
Testing babel-preset-env using package.json
Noob question here. Trying to assure myself that babel-preset-env works.
I install babel-core and babel-preset-env:
yarn add --dev babel-core
yarn add --dev babel-preset-env
My package.json has:
"babel": {
"presets": [
[
"env",
{
…
user3496136
0
votes
1 answer
Generator Runtime error when added babel-preset-env and babel-preset-stage-2
I had to use babel-preset-env and babel-preset-stage-2 in order to use webpack for a code that includes spread operator. After that I succeed in building my bundle with webpack but this time I get generator runtime error during runtime.
So first I…
Rasim Avcı
- 1,123
- 2
- 10
- 16
0
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0 answers
Babel Import/Export Dependency Conflicts
I'm trying to use javascript ES7 to set up my base graphql server. My application crashes when I do npm run from my terminal. I believe I've installed too many babel packages, causing dependency contradictions. Does the babel-preset-env cover…
Chris Rotunno
- 1
- 2
0
votes
1 answer
babel-preset-env runtime version check
babel-preset-env allows to automatically determine the needed polyfills and transformation but how does it check at runtime if the target versions specified at compile time are really available.
Let say I target safari 10 using
"targets": {
…
doberkofler
- 9,511
- 18
- 74
- 126
-1
votes
2 answers
Getting "npm start" error when deploy Node JS app to Heroku server
I'm getting this error when i deploy my NodeJS app to Heroku server.
2019-08-27T05:54:03.597197+00:00 heroku[web.1]: State changed from starting to crashed
2019-08-27T05:54:03.569746+00:00 heroku[web.1]: Process exited with status…
quan_bui
- 69
- 1
- 3
- 8
-1
votes
1 answer
Unexpected token, expected "," when trying to use react rendering
The code I had used to work, but after doing a lot of major updates to packages I have been working through some errors. The one that has me stuck right now is the following:
renderDateTextField = (props: TextFieldProps) => {
return (
ComputerLocus
- 3,448
- 10
- 47
- 96
-1
votes
1 answer
undefined is not an object (evaluating 'regeneratorRuntime.mark')
I'm having a trouble with this error for quite a while. I only did some renaming and copy and paste of some folders from my previous app to this app. The app bundles to 100%. but after that instead of opening my app it pops up this error message. If…
Harikrishnan S
- 124
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- 13