I am very new in Node.Js. I just started node.js basic tutorial. But when I change my code I have to restart the server all the times. But is there any way where no need to restart the server again and again.
4 Answers
Nodemon is the best solution for this. Install nodemon like this "npm i nodemon" Then restart your project with nodemon, "nodemon app" You are good to go...
I'm not sure on the details of the compilation process. But I think it's correct to say that on app start, your source code is parsed into computer instructions represented in memory and executed. During runtime source code files are not re-parsed. And so changing the source code will have no effect on the running application. Unless the application re-parses a file prior to execution of the code in that file. Possibly a service worker... But I'm not sure and that would be an exception.
A good way of thinking of nodejs and javascript files (imo) is that the javascript files are configuration for nodejs. Which is a c++ app. So if the configuration changes you need to restart node to read the new configuration.
There are tools such as nodemon that will monitor the source code for file saves and trigger the node application to restart.
Check out Nodemon.
nodemon will watch the files in the directory in which nodemon was started, and if any files change, nodemon will automatically restart your node application.
nodemon does not require any changes to your code or method of development. nodemon simply wraps your node application and keeps an eye on any files that have changed. Remember that nodemon is a replacement wrapper for node, think of it as replacing the word "node" on the command line when you run your script.
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