Debug Node.js programs using node-inspector in Chrome

Node.js development is very speedy but not debugging-friendly. Apart from console.log, you can also install node-inspector to achieve step-through debugging in the Chrome browser.
Installation command: npm install -g node-inspector
Notes: The installation of node-inspector may take a long time. My first try installing it failed because of the unstable network. You can first try npm install -g cnpm to install the domestic npm command provided by Taobao, and then run the cnpm install -g node-inspector command to install it from foreign servers.
After successful installation, enter node-inspector in the command line to start the tool.


Then run a command line tool and start your application in debug mode, for example:
node --debug app.js
//Or
npm --debug start
//If you have installed nodemon:
nodemon --debug ./bin/www

Enter the URL http://127.0.0.1:8080/?port=5858 provided by node-inspector, and you will be able to debug your program.

The built in Node V8 Inspector is a very speedy option.  That along with this Chrome extension NIM https://chrome.google.com/webstore/detail/nim-node-inspector-manage/gnhhdgbaldcilmgcpfddgdbkhjohddkj makes things super easy.  You won't need to copy/paste the Inspector URL.