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JavaScript Express Basics Parameters, Query Strings, and Modularizing Routes Randomize Cards

My solution using pugjs

So I'm sure I'm ignorant but his solution seems a bit over engineered. Anyway check out line 12 of cards.js thats the main difference. let me know what you think. Would this break easy if a client told me to change something?

card.js

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

router.get('/:id', (req, res) => {
    const { side } = req.query;
    const { id } = req.params;
    const text = cards[id][side];
    const { hint } = cards[id];
    //sets showside to the opposite of side. 
    let showside = side === "question" ? "answer" : "question";

    const templateData = { text, hint, side, id , showside};
    res.render('card', templateData);
});

module.exports = router;

card.pug

extends layout.pug

block content
  section#content
    h2= text
    if side == "question"
      p
        i Hint: #{hint}
    a(href=`http://localhost:3000/cards/${id}?side=${showside}`) #{side}

2 Answers

Ben McMahan
Ben McMahan
7,922 Points

Similar to what I came up with. One thing that I thought about was that we're relying on the URL being exact with no failsafe for anything other than "question" or "answer". That's where a flushed out else to handle that would be handy.

Otherwise, I prefer shorthand here.

router.get('/:id', (req, res) => {
    // Look for the query string to see which side to display
    const {side} = req.query;
    // Get the ID of the card
    const {id} = req.params;
    // Get the text of the selected card
    const text = cards[id][side];
    // Create text for the flip card link
    const sideToShow = side === 'question' ? 'answer' : 'question';
    const sideToShowDisplay = side === 'question' ? 'Show Answer' : 'Show Question';
    // Get the hint of the selected card
    const {hint} = cards[id];
    // Create an object to pass into the template
    const templateData = { id, text, sideToShow, sideToShowDisplay };

    if (side === 'question') {
        templateData.hint = hint;
    }

    res.render('card', templateData) ;
});

I agree very fickle code solution looking back at this now. it gets the point of the lesson across though.