How did the data.quote.find method worked ??

When you send a request to app.get(“/quotes/:id”, (req,res) => {}

That req variable in the callback has a params property equal to whatever the :id is that was passed in from whoever is accessing that endpoint. In the data object there is an array called quotes. So that’s the data.quotes. find() is an array function that loops over that array and returns the first found instance of the condition you enter in the function. So find(quote => quote.id === req.params.id)

If you do it statically you can do app.get(“/quotes/8721”, (req, res) => { const quote = data.quotes.find(quote => quote.id === 8721); The quote variable is now the quote object with the id of 8721. So you can do console.log(quote.author); “Martin Luther King”

Sorry about my format I’m on mobile.