In npm, scripts are a set of built-in and custom commands used to automate the execution of repetitive project-related tasks, such as starting the web server, bundling the application, linting the code, running automated tests, and so on.

Defining and executing scripts

Defining a script

Scripts are defined under the scripts property of the package.json file using the following syntax:

{  "scripts": {    "<name>": "<command>"  }}

Where:

• <name> is the name of the script (e.g. build, lint).

• <command> is the shell command to be executed when invoking the script.