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JavaScript Express Basics Parameters, Query Strings, and Modularizing Routes Linking Around the Application

Linus Johansson
Linus Johansson
12,469 Points
Posted by Linus Johansson
Linus Johansson
12,469 Points

getting this error message: RangeError: Invalid status code: undefined

having some real problems with this one, cant seem to figure out what the problem is, it looks exactly like the video to me..

cards.js

router.get('/',(res,req)=>{

const numberOfCards = cards.length;

const flashCardId = Math.floor(Math.random()*numberOfCards);

res.redirect(`/cards/${flashCardId}?side=question`);

});

3 Answers

Adam Beer
Adam Beer
11,314 Points
Adam Beer
Adam Beer
11,314 Points

Do you use the beginning of these?

const { data } = require('../data/flashcardData.json');
const { cards } = data;

The code looks good. If this isn't your solution please show your whole code.

Linus Johansson
Linus Johansson
12,469 Points
Linus Johansson
Linus Johansson
12,469 Points

found the troublemaker : router.get('/',(res,req). response comes before the request..

Adam Beer
Adam Beer
11,314 Points
Adam Beer
Adam Beer
11,314 Points

Really, I didn't even notice :)

Victoria Medley
Victoria Medley
17,085 Points

How did you fix this? I can't figure it out.

Timothy Allen
Timothy Allen
9,854 Points
Timothy Allen
Timothy Allen
9,854 Points

I had the same problem, it ended up being because I was using math instead of Math.

router.get('/', (req, res) => {
    const numberOfCards = cards.length;
    const flashcardID = Math.floor(Math.random() * numberOfCards);
    res.redirect(`/cards/${flashcardID}?side=question`)
});