Babel Polyfill will emulate a full ES6 environment. This polyfill is automatically loaded when using babel-node.
Installation:
$ npm install babel-polyfill
To find more information :
Questions tagged [babel-polyfill]
265 questions
3
votes
1 answer
Only include needed polyfills with babel-polyfill
Is there a way to "tree shake" babel-polyfill, such that only the features I use are polyfilled?
That is, if I never use String.padStart in my code, it's polyfill should not be included.
Birjolaxew
- 807
- 9
- 25
3
votes
1 answer
Using babel-polyfill in production entry file
I'm using babel to transpile ES7 js code, and everything works like a charm in dev/staging. Inside the application, I heavily rely on async/await features of ES7. My entry file looks like this:
'use…
Ivan
- 769
- 5
- 17
3
votes
2 answers
Does core-js polyfill or does it always replace the function?
I have a react project that needs to support older browsers and we're using things like array.find() and array.map(). I see that our project already has core-js in the node_modules folder, so it would be nice to use it rather than adding another…
SomethingOn
- 9,813
- 17
- 68
- 107
3
votes
1 answer
Cannot read property '_babelPolyfill' of undefined
I'm trying to get babel-polyfill working with for a library but I'm getting the following error:
TypeError: Cannot read property '_babelPolyfill' of undefined
at Object. (/Users/foo/webpack-library-starter/lib/library.js:73:6)
...
I'm…
Nelson Yeung
- 3,262
- 3
- 19
- 29
3
votes
1 answer
Iterating an HTMLCollection object using for-of loop
I'm using babel-polyfill and I'm trying to iterate an HTMLCollection object using for-of loop:
const elements = document.getElementsByClassName('some-class')
for (const element of elements) {
console.log(element)
}
It's not working. I'm getting…
thesublimeobject
- 1,393
- 1
- 17
- 22
3
votes
2 answers
How can I use babel-polyfill for multiple separated entries / outputs?
I have this in my webpack.config.js to create two different outputs from two sources:
module.exports = {
entry: {
'dist/index.js': ['babel-polyfill', './src/Component.jsx'],
'example/bundle.js': ['babel-polyfill', './src/Page.jsx'],
},
…
Rotareti
- 49,483
- 23
- 112
- 108
2
votes
0 answers
Uncaught ReferenceError: Buffer is not defined even after adding the webpack plugin for buffer
I followed the answer in https://stackoverflow.com/a/68723223/14758033
added the plugin inside the module.exports object of react-scripts webpack config
and added fallback in my webpack.config.js of react-scripts
fallback:{
"buffer":…
Soham Saha Roy
- 31
- 3
2
votes
0 answers
If I install both `@babel/runtime-corejs3` do I still need `core-js` as dependency?
As title, I'm learning about babel and current I'm trying to understand @babel/plugin-transform-runtime, here are my current conclusions:
From my settings of @babel/preset-env below, I will need to install core-js@3 as dependency.
(I'm not sure)…
NeoZoom.lua
- 2,269
- 4
- 30
- 64
2
votes
1 answer
why is my babel config ignoring this plugin?
this my babe.config.js :
module.exports = {
presets: [
'@babel/preset-react',
[
'@babel/preset-env',
{
modules: false,
},
],
],
plugins: [
'@babel/plugin-proposal-optional-chaining',
…
سعيد
- 1,547
- 1
- 14
- 32
2
votes
2 answers
Async / Await using babel regenerator-runtime does not work in ie11
I have a template app that I want to make work with ie11, for that I'm using webpack + babel.
For some reason I ignore, my JS does not work at all in ie11 even though I did set it as a target in my config. To test it, I use a ie11 on the internet…
Lynn
- 121
- 8
- 25
2
votes
2 answers
Gulp & Babel polyfill Promises for IE11 issue
I have an old project written in Angular.js. I need to polyfill promises for IE11 but it's not working.
In gulpfile.js I have requires for Babel stuff
var corejs = require('core-js/stable'),
regenerator = require('regenerator-runtime/runtime'),
…
Emilia Heller-Mrotek
- 195
- 2
- 17
2
votes
1 answer
Seperate Babel Polyfills from Main Code when bundling
I am using Webpack and Babel. Babel is generating a single file main.js in my output directory with all the polyfills added along side my js files. I would like to separate the polyfills from the main code into two different files. polyfills.js and…
Jake Steele
- 498
- 3
- 14
2
votes
3 answers
React App converting JS to ES5 to target IE 11
I currently have a react app which is not running / rendering in IE, I think due to an ES5 / ES6 problem.
The error I get is this: Syntax error.
On the line highlighted below.
if(process.env.NODE_ENV == 'production') {
=> module.exports =…
Squiggs.
- 4,299
- 6
- 49
- 89
2
votes
3 answers
SCRIPT5022: Exception thrown and not caught
I am using Vuejs for my web project. As there are some users out there who are still using IE11, I need to make this web project compatible.
Currently I am getting this error on IE11:
SCRIPT5022: Exception thrown and not caught
/***/…
SPQRInc
- 162
- 4
- 23
- 64
2
votes
0 answers
Page is not binding when angularjs version upgraded to 1.4.1 from 1.3.10
I have upgraded my current version of angular to 1.4.1 and as a result, the page is not loading
I have a sample code to demo it.
'use strict';var app = angular.module('test').controller
('testcontroller', function () {
return…
Avinash Avi
- 27
- 7