•

npm pkg get <field>

Retrieves a value key, defined in your package.json file.

For example, in order to retrieve the name of the current package, you can run:

npm pkg get name

It's also possible to retrieve multiple values at once:

npm pkg get name version

You can view child fields by separating them with a period.
To retrieve the value of a test script value, you would run the following command:

npm pkg get scripts.test

For fields that are arrays, requesting a non-numeric field will return all of the values from the objects in the list.
For example, to get all the contributor emails for a package, you would run:

npm pkg get contributors.email

You may also use numeric indices in square braces to specifically select an item in an array field.
To just get the email address of the first contributor in the list, you can run:

npm pkg get contributors[0].email

For complex fields you can also name a property in square brackets to specifically select a child field.
This is especially helpful with the exports object:

npm pkg get "exports[.].require"

•

npm pkg set <field>=<value>

Sets a value in your package.json based on the field value.
When saving to your package.json file the same set of rules used during npm install and other cli commands that touches the package.json file are used, making sure to respect the existing indentation and possibly applying some validation prior to saving values to the file.

The same syntax used to retrieve values from your package can also be used to define new properties or overriding existing ones, below are some examples of how the dot separated syntax can be used to edit your package.json file.

Defining a new bin named mynewcommand in your package.json that points to a file cli.js:

npm pkg set bin.mynewcommand=cli.js

Setting multiple fields at once is also possible:

npm pkg set description='Awesome package' engines.node='>=10'

It's also possible to add to array values, for example to add a new contributor entry:

npm pkg set contributors[0].name='Foo' contributors[0].email='foo@bar.ca'

You may also append items to the end of an array using the special empty bracket notation:

npm pkg set contributors[].name='Foo' contributors[].name='Bar'

It's also possible to parse values as json prior to saving them to your package.json file, for example in order to set a &quot;private&quot;: true property:

npm pkg set private=true --json

It also enables saving values as numbers:

npm pkg set tap.timeout=60 --json

•

npm pkg delete <key>

Deletes a key from your package.json

The same syntax used to set values from your package can also be used to remove existing ones.
For example, in order to remove a script named build:

npm pkg delete scripts.build

•

npm pkg fix

Auto corrects common errors in your package.json.
npm already does this during publish, which leads to subtle (mostly harmless) differences between the contents of your package.json file and the manifest that npm uses during installation.

npm pkg set funding=https://example.com --ws

npm pkg get name version --ws
{


  "a": {


    "name": "a",


    "version": "1.0.0"


  },


  "b": {


    "name": "b",


    "version": "1.0.0"


  }
}

• npm install
• npm init
• npm config
• workspaces