loading
loading
The address for a server running on your own machine.
localhost usually points to your computer, not the public internet. A URL like http://localhost:3024 means the app is running locally for testing.
Plainly
Think of localhost as roads and power for the app city. The address for a server running on your own machine.
In practice
Use it when local behavior needs to become a reachable, reliable deployed service. In practice, define the owner, input, output, and failure mode before you rely on it.