Exam JavaScript-Developer-I Topic 1 Question 124 Discussion

Comprehensive and Detailed Explanation From JavaScript/Node.js Knowledge:
In a Node.js project that uses package.json, you typically define a " start " script:
{
" scripts " : {
" start " : " node server.js "
}
}
Then you start the app with:
npm start
npm start:
* Looks up the " start " script in package.json.
* Runs the command defined there (commonly node server.js).
* This is the standard way to start a Node.js app with npm-managed dependencies.
Why others are incorrect:
* A. node start
* Tries to run a file named start with Node; does not use package.json scripts.
* C. npm start server.js
* npm start does not take the script filename as an argument in this way; it just runs the start script as defined.
* D. start server.js
* Not an npm or node command; on some shells it just tries to "start" a process but is not the standard Node/npm workflow.
Relevant concepts: package.json, npm scripts, npm start, Node entry file execution.