How do I add a custom script to my package.json file that runs a javascript file?

Custom Scripts npm run-script <custom_script_name> or npm run <custom_script_name> In your example, you would want to run npm run-script script1 or npm run script1. See https://docs.npmjs.com/cli/run-script Lifecycle Scripts Node also allows you to run custom scripts for certain lifecycle events, like after npm install is run. These can be found here. For example: “scripts”: { … Read more