Why do I configure babel-loader, on webpackp but report an error when I use the extension operator? Or how can the extension operator be rewritten to look like es5?

this is the configuration in webpack:

{

            test: /\.jsx$/,
            exclude: /(node_modules)/,
            use: {
                loader: "babel-loader",
                options: {
                    presets: ["env", "react"]
                }
            }
        },

React.js webpack javascript

Mar.03,2021

The

extension operator can be replaced with apply .

should work without being compiled by babel , because modern browsers already support ES6.

is this a mistake reported by the editor, that is, grammar checking?

configure .babelrc

Previous: How do I pass the parameters of the routing component to app.vue?

Next: After the promotion of webpac4, the node did not make an error, but the following error appeared on the page

Cannot add less to react, solution using webpack
webpack4.x less has been introduced and used in the H1 tag, but there is no style on the final page. index.js index.less webpack.dev.js : ...

Less react.js webpack javascript front-end

Mar.09,2021
Css extracted by mini-css-extract-plugin cannot be directly introduced by link.
MiniCssExtractPlugin abstracts why css generates a js file with the same name, and introduces this js to bring in the extracted css link, whether there is a problem with the configuration or just like this. new HtmlWebpackPlugin({ title: "Gol...

React.js webpack javascript

Mar.15,2021
Postcss cannot be suffixed after using mini-css-extract-plugin
{ test: .(sass|scss)$ , use: [{ loader: MiniCssExtractPlugin.loader, options: { publicPath: ".. " } }, "css-loader", "postcss-loade...

React.js webpack javascript

Mar.20,2021
Webpack4 + react-hot-loader modified state page cannot be hot updated
configure https: github.com gaearon re. according to the document. When you modify the name field of state in the file, the page will not be updated, but the button text, page in the render function will be updated. "dev": "webpack-dev...

Redux react.js webpack javascript node.js

Mar.29,2021
Webpack + react-hot-loader modified state page cannot be hot updated
configure https: github.com gaearon re. according to the document. When you modify the name field of state in the file, the page will not be updated, but the button text, page in the render function will be updated. "dev": "webpack-dev...

React.js webpack javascript

Sep.21,2021

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b2bd60-40053.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b2bd60-40053.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?