babel | 🐠 Babel is a compiler for writing next generation JavaScript
kandi X-RAY | babel Summary
kandi X-RAY | babel Summary
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of babel
babel Key Features
babel Examples and Code Snippets
Lines of Code : 72
License : No License
Copynpm i -D babel-loader @babel/core @babel/preset-env
{
"presets": [
[
"@babel/preset-env",
{
// 用于指定浏览器版本号
"targets": {
"browsers": "last 2 version"
}
}
]
]
}
{
"module": {
"rules import 'core-js/stable';
import 'regenerator-runtime/runtime';
import 'core-js/stable';
import "core-js/modules/es.array.unscopables.flat";
import "core-js/modules/es.array.unscopables.flat-map";
import "core-js/modules/es.object.from-entries";
i {
"plugins": ["react-loadable/babel"]
}
import Loadable from 'react-loadable';
const LoadableMyComponent = Loadable({
loader: () => import('./MyComponent'),
});
const LoadableComponents = Loadable.Map({
loader: {
One: () => import def _bubble_down(self, elem: T) -> None:
# Place a node at the proper position (downward movement) [to be used
# internally only]
curr_pos = self.position_map[elem]
_, weight = self.heap[curr_pos]
child_left npm ERR! trololol-cloud-monitor-service@4.3.10 test:ci:
`TLL_MONITOR_UPLOAD_WAIT_TIME=0\TLL_DEFAULT_WAIT_TIMEOUT=0 ./node_modules/.bin/mocha
--timeout 120000
--reporter=xunit
--reporter-options output=./test-results/TEST-reyarn add --dev @babel/core @babel/plugin-transform-react-jsx
or
npm i -D @babel/core @babel/plugin-transform-react-jsx
{
"plugins": [
[
"@babel/plugin-transform-react-jsx",
{
"runtime": "anpm update @babel/core @babel/plugin-transform-react-jsx
or
yarn upgrade @babel/core @babel/plugin-transform-react-jsx
// If you're using @babel/plugin-transform-react-jsx
{
"plugins": [
["@babel/plugin-trans
My old web applciation
old stuff
Some old HTML content.
const GiveItem = (props) => {
console.log("init give item component");
return React.createElement(
"section",
npm i -D @babel/register jsdom jsdom-global
{
"presets": ["babel-preset-gatsby"]
}
NODE_ENV=test npx mocha -r @babel/register -r jsdom-global/register ./src/**/*.test.js
$ npm install babel-register babel-preset-es2015 --save-dev
// index.js
// by requiring `babel/register`, all of our successive `require`s will be Babel'd
require('babel-register')({
presets: [ 'es2015' ]
});
Community Discussions
Trending Discussions on babel
QUESTION
When trying to run the command using nextjs npm run dev shows error - failed to load SWC binary see more info here: https://nextjs.org/docs/messages/failed-loading-swc.
I've tried uninstalling node and reinstalling it again with version 16.13 but without success, on the vercel page, but unsuccessful so far. Any tips?
Also, I noticed it's a current issue on NextJS discussion page and it has to do with the new Rust-base compiler which is faster than Babel.
...ANSWER
Answered 2021-Nov-20 at 13:57This worked as suggeted by nextJS docs but it takes away Rust compiler and all its benefits... Here is what I did for those who eventually get stuck...
Step 1. add this line or edit next.json.js
QUESTION
I am currently setting up a boilerplate with React, Typescript, styled components, webpack etc. and I am getting an error when trying to run eslint:
Error: Must use import to load ES Module
Here is a more verbose version of the error:
...ANSWER
Answered 2022-Mar-15 at 16:08I think the problem is that you are trying to use the deprecated babel-eslint parser, last updated a year ago, which looks like it doesn't support ES6 modules. Updating to the latest parser seems to work, at least for simple linting.
So, do this:
- In package.json, update the line
"babel-eslint": "^10.0.2",to"@babel/eslint-parser": "^7.5.4",. This works with the code above but it may be better to use the latest version, which at the time of writing is 7.16.3. - Run
npm ifrom a terminal/command prompt in the folder - In .eslintrc, update the parser line
"parser": "babel-eslint",to"parser": "@babel/eslint-parser", - In .eslintrc, add
"requireConfigFile": false,to the parserOptions section (underneath"ecmaVersion": 8,) (I needed this or babel was looking for config files I don't have) - Run the command to lint a file
Then, for me with just your two configuration files, the error goes away and I get appropriate linting errors.
QUESTION
I was asked to create such an object called foo that can chain the function log and wait.
For example:
...ANSWER
Answered 2021-Dec-31 at 10:21It's always better to use promises. An implementation of this functionality could be;
QUESTION
In package.json file react-router-dom dependencies added. App component wrapped by BrowswerRouter , but when I wrap route by switch it says the following error Switch' is not exported from 'react-router-dom'. I deleted the package.json.lock ,node modules, installed npm again and npm install @babel/core --save. Still not working. I successfully wasted 6 hour for this. Can you please help me to fix this? why it's not importing?
Index.js
...ANSWER
Answered 2021-Nov-04 at 18:10Routes instead of Switch in react-router v6
You are using react-router-dom version 6, which replaced Switch with the Routes component
QUESTION
This is a React web app. When I run
...ANSWER
Answered 2021-Nov-13 at 18:36I am also stuck with the same problem because I installed the latest version of Node.js (v17.0.1).
Just go for node.js v14.18.1 and remove the latest version just use the stable version v14.18.1
QUESTION
I know (-0 === 0) comes out to be true. I am curious to know why -0 < 0 happens?
When I run this code in stackoverflow execution context, it returns 0.
ANSWER
Answered 2021-Dec-22 at 14:17This is a specialty of Math.min, as specified:
21.3.2.25 Math.min ( ...args )
[...]
- For each element number of coerced, do
a. If number is NaN, return NaN.
b. If number is -0𝔽 and lowest is +0𝔽, set lowest to -0𝔽.
c. If number < lowest, set lowest to number.
- Return lowest.
Note that in most cases, +0 and -0 are treated equally, also in the ToString conversion, thus (-0).toString() evaluates to "0". That you can observe the difference in the browser console is an implementation detail of the browser.
QUESTION
My problem is that I have this Venn diagram consisting of three div elements and I want to scale them with :hover, so that when I hover over an intersection all the circles that meet in the intersection scale to my defined value. In the moment I only get one circle to scale at the time.
ANSWER
Answered 2021-Oct-31 at 02:25You can achieve this, but you'll need a little JavaScript. Don't worry, it's nothing too complicated. What you can do is get the dimensions for each circle using the element.getBoundingClientRect() method, like so...
QUESTION
I am using VSCode, and when I add the line 'react-hooks/exhaustive-deps': 'warn' to my .eslintrc.js, I get the following in the ESLint output:
ANSWER
Answered 2021-Oct-15 at 00:55ESLint 8.0.0 comes with a breaking change for rules that provide suggestions. There is nothing you can put into your .eslintrc.js to make it work if you use rules that haven't been updated to work after this change.
What you can do:
- Use ESLint 7 until the plugin is updated to work with ESLint 8.
- In case of
eslint-plugin-react-hooks, the offending rule has already been updated (check this line on GitHub), it's just that there hasn't been a stable release of the package since. However there have been daily alpha releases, at the time of writing the latest version is4.2.1-alpha-c3a19e5af-20211014. If you really need both ESLint 8 and this plugin, you can use an alpha version until the next stable version comes out.
QUESTION
Nuxtjs using vuetify throwing lots of error Using / for division is deprecated and will be removed in Dart Sass 2.0.0. during yarn dev
Nuxtjs: v2.15.6 @nuxtjs/vuetify": "1.11.3", "sass": "1.32.8", "sass-loader": "10.2.0",
Anyone know how to fix it ?
...ANSWER
Answered 2021-Jun-01 at 05:16There's an issue with vuetify I think. But if you use yarn, you can use
QUESTION
So, I've used Parcel multiple times before and I've never had an issue with it. This time it throws some stupid errors about SemVer versioning and I'm literally loosing my mind trying to find a solution which would fix this problem.
I've started new project: installed npm w/ npm init (no additional options), then installed parcel npm install --save-dev parcel-bundler and then created my folder structure:
--node_modules
--index.html
--index.js
Here is my package.json:
...ANSWER
Answered 2021-May-28 at 13:17This is a known problem in the newest version of Parcel.
The solution of this problem was to revert back to version 1.12.3, or by updating to the version 2 of Parcel. You can do the first solution by:
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