My Node.js notes

Node.js Package Manager (npm)

npm

Initialize an npm project. Within project directory use npm init command. The default command launches a questionnaire. To answer default on all questions use -y argument.

Uninstall global module

npm uninstall -g nodemon

Install local module

npm install nodemon

Install as dev dependency (not installed on production environment)

npm install nodemon --save-dev

Basic stuff

debugger statement and node inspect

chrome:://inspect

Exit Chrome DevTool debugger.

Type restart at console after exiting Chrome DevTool to restart app with same arguments.

Press CTRL+C twice to exit debugger in console.

nodemon

If nodemon installed globally

nodemon <app.name> -e <comma separated list of extensions to monitor>

If nodemon installed locally a script can launch. See scripts key section for details.

package.json info

scripts key

create key value pair where key is name of script and value is script location

Example:

"scripts": {
    "dev": "nodemon src/app.js -e js,hbs"
  }

At node prompt type npm run dev to execute script nodemon src/app.js -e js,hbs

nodemon src/app.js -e js,hbs

NPM modules

CORS is a node.js package for providing a Connect/Express middleware that can be used to enable CORS with various options.

Resources

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