How do you enableimport
Syntax in Node.js?
Many tutorials now useimport XXX from 'XXX'
(ES module) Syntax instead ofconst XXX = require('XXX')
(Plain JS) Syntax.
If you add it to a Node.js application, it will not work. You will receive the following error:
unexpected identifier..
One of the solutions is to useTower of Babel. If you have already set up Babel settings for your project, then it should already work for you.
However, you no longer need Babel now, because Node has experimental support for ES modules, and since it is experimental, to enable it, you must do three things.
First, install the latest version of Node.js. It has the latest and most powerful features.
Second, add"type": "module"
In your linepackage.json
file.
Third, use--experimental-modules
Mark on callnodejs
:
node --experimental-modules app.js
You should be good to go!
An alternative is to avoid adding"type": "module"
In your linepackage.json
File instead of renaming yourapp.js
Archive (or other) toapp.mjs
.
Please note that nowrequire()
The grammar will stop working.
For older Node.js versions that may not support this flag, I suggest you checkesm
npm module.
Download mine for freeNode.js manual
More node tutorials:
- Introduction to npm package manager
- Introduction to Node.js
- HTTP request using Axios
- Where to host Node.js applications
- Use Node.js to interact with Google Analytics API
- npx node package runner
- package.json guide
- Where does npm install packages?
- How to update Node.js
- How to use or execute packages installed with npm
- package-lock.json file
- Semantic version control using npm
- Should you submit the node_modules folder to Git?
- Update all Node dependencies to the latest version
- Use Node.js to parse JSON
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- Node.js flow
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- Use export to expose functions from Node files
- Difference between node and browser
- Use Node to make HTTP POST requests
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- Node buffer
- A brief history of Node.js
- How to install Node.js
- How much JavaScript do you need to know to use Node?
- How to use Node.js REPL
- Node, accepts parameters from the command line
- Use Node to output to the command line
- Accept input from the command line in Node
- Use `npm uninstall` to uninstall the npm package.
- npm global or local package
- npm dependencies and devDependencies
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- Understanding setImmediate()
- Node event emitter
- Set up an HTTP server
- Use Node to make HTTP requests
- Node fs module
- HTTP request in Node using Axios
- Use Node to read files
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- Node path module
- Node http module
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- Basic knowledge of using MySQL and Node
- Error handling in Node.js
- Pug Guide
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- How to exit from Node.js program
- Node os module
- Node event module
- Node, the difference between development and production
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