Live Editing and Debugging

Live code editing

When the nodehello container is running in development mode, you can edit index.js, and Nodemon will restart the application when you save the file.

For example, examine line 17:

const message = `Hello ${ req.params.name  || 'World' }!`;

and change Hello to Hey there:

const message = `Hey there, ${ req.params.name  || 'World' }!`;

Practice

Click on the “Run” button and then click the URL on “Your app can found at:”; you will be able to see “Hey there, World!”

Now replace there on line 17 with your_name, click on the “Run” button, and refresh the browser.