This week, you’ll connect the JavaScript you’ve been writing so far to the bigger world it usually lives in: the network. Most real applications do not just compute on local data, they constantly send and receive information over the internet. This module is about understanding that environment at a high level and seeing how the different pieces fit together when your code communicates with other systems.
This week is about the story: information starts on one machine, moves through several layers of infrastructure, and arrives at another machine where it is interpreted and used. By the end of the week, you should have a clearer mental picture of what actually happens between “my code sends something” and “my application receives a response”, so that the more detailed concepts and tools in the learning goals make sense in context.
ping and nslookup resolve and test addresses.curl and Postman) to send requests, inspect responses, and experiment with real APIs.
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