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# \[WEBPACK] Dùng webpack để sử dụng từ khóa import, export (ok) package.json ``` { "name": "abc", "version": "1.0.0", "description": "", "main": "webpack.config.js", "dependencies": { "webpack": "^4.42.0" }, "devDependencies": {}, "scripts": { "test": "echo \"Error: no test specified\" && exit 1", "build": "webpack -p", "watch": "webpack --watch" }, "author": "", "license": "ISC" } ``` {% embed url="" %} ``` var path = require('path'); module.exports = { mode: 'development', entry: './src/index.js', output: { filename: 'bundle.js', path: path.resolve(__dirname) } }; ``` {% embed url="" %} ``` //src/index.js const sum = require('./math'); const total = sum(1,5); console.log(total); ``` math.js ``` //src/math.js const sum = (a,b) => { return a + b; } module.exports = sum; ``` index.html ``` Document ``` ## Các bước thực hành ``` $npm init $npm install -g webpack // Thay đổi package.json "scripts": { "test": "echo \"Error: no test specified\" && exit 1", "build": "webpack -p", "watch": "webpack --watch" }, // webpack.config.js var path = require('path'); module.exports = { mode: 'development', entry: './src/index.js', output: { filename: 'bundle.js', path: path.resolve(__dirname) } }; $npm i -g webpack-cli $webpack ``` Bài 2: Babel ``` npm install --save-dev babel-loader babel-core babel-preset-env ``` ![](/files/-M38Ky6XOl2qq83w71Ja) webpack.config.js ``` var path = require('path'); module.exports = { mode: 'development', entry: './src/index.js', output: { filename: 'bundle.js', path: path.resolve(__dirname,'build') }, module: { rules: [ { use: 'babel-loader', test: /\.js$/ } ] } }; ``` Mẫu hoàn chỉnh sử dụng được luôn ES6 && ReactJS {% file src="/files/-M38dA0kfBRFbb4tCvR-" %} --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://javascriptuse.gitbook.io/javascript/advanced/dung-webpack-de-su-dung-tu-khoa-import-export.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.