package json dependencies code example

Example 1: npm dev dependencies

# install as devDependency
npm install <package-name> --save-dev

# install as normal dependency
npm install <package-name> --save

# install all devDependencies listed in package.json
npm install --only=dev

# install all normal dependencies listed in package.json
npm install --only=prod
# or if NODE_ENV is set to production
npm install

Example 2: how to install dependencies from package.json

npm install // installs dependencies listed in package.json

Example 3: npm update package.json version field by code

# From 1.0.0 -> 1.0.1
npm version patch 

# From 1.0.1 -> 1.1.0
npm version minor

# From 1.1.0 -> 2.0.0
npm version major