Copilotfree, in-browser
Ask me anything about your lessons or your code.
“What is a port?” · “Why is my code erroring?”
Ask me anything about your lessons or your code.
“What is a port?” · “Why is my code erroring?”
The three-digit number that starts every response and says how it went: 200 OK, 301 moved, 401 not authenticated, 403 forbidden, 404 not found, 500 server error. Watching how the code changes as inputs change is how testers find behavior the developer never meant to expose.