FAQ: Server Testing Patterns - Refactoring: Route Parameters

This community-built FAQ covers the “Refactoring: Route Parameters” exercise from the lesson “Server Testing Patterns”.

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This exercise can be found in the following Codecademy content:

Web Development

Learn Testing for Web Development

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I was wondering if there is a way to use template literals in place of string concatenation here?

I tried both:

router.get('/:username', (req, res) => {
    res.send('<h1 id="welcome-message">Welcome ${req.params.username}!</h1>');


router.get('/:username', (req, res) => {
    res.send('<h1 id="welcome-message">Welcome '${req.params.username}'!</h1>');

But I either get an assertion error or a syntax error when running it.
Just wondering: do any of you know how to make this work?

You can, but keep in mind that template literals require the use of the backtick to work. It looks like you continued to use single-quotes in your tests.

router.get('/:username', (req, res) => {
    res.send(`<h1 id="welcome-message">Welcome ${req.params.username}!</h1>`);
1 Like

Ah, you are so right! I totally omitted that important detail after not using them for a while: thanks!

does someone notice codecademy solution on refactoring route is wrong ?