Babel

Babel is a compiler for writing next generation JavaScript.

• babel.dev
• github.com/babel/babel

Installation

npm install --save-dev @babel/core @babel/cli @babel/node

Configuration

package.json

{ 
    "scripts": {
        "start": "node index.js", 
        "start:dev": "babel-node index.js"
    },
}

Run the script.

npm run start:dev

Presets

@babel/preset-env

A Babel preset for each environment.

npm install --save-dev @babel/preset-env

.babelrc.json

{ 
    "presets" : ["@babel/preset-env"]
}

@babel/preset-react

Babel preset for all React plugins.

npm install --save-dev @babel/preset-react

.babelrc.json

{ 
    "presets": ["@babel/preset-react"]
}

@babel/preset-typescript

Babel preset for TypeScript.

npm install --save-dev @babel/preset-typescript

.babelrc.json

{ 
    "presets": ["@babel/preset-typescript"]
}

Dependencies

@babel/core

Babel compiler core.

npm install --save-dev @babel/core

@babel/cli

Babel command line.

npm install --save-dev @babel/cli

@babel/node

Babel command line.

npm install --save-dev @babel/node