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Learn how to resolve the issue of JavaScript not being rendered in Pug, enabling you to display dynamic content like the current year seamlessly.
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This video is based on the question https://stackoverflow.com/q/65418469/ asked by the user 'Mack Richardson' ( https://stackoverflow.com/u/14875333/ ) and on the answer https://stackoverflow.com/a/65418523/ provided by the user 'macintosh' ( https://stackoverflow.com/u/12248104/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Properly Render JavaScript Variables in Pug Templates

When creating web applications, you often need to include dynamic content, such as the current year in a copyright notice. However, if you're using Pug (formerly known as Jade) and find that your JavaScript isn't rendering properly, you may run into a frustrating problem. This issue occurs when Pug displays the variable name instead of its value.

In this guide, we'll explore a common problem: JavaScript not being rendered by Pug. We'll provide a clear solution and offer tips to ensure your dynamic content is displayed correctly.

The Problem

You might be trying to display the current year in your Pug template using JavaScript, like this:

[[See Video to Reveal this Text or Code Snippet]]

When you render this code, you might expect to see something like:

[[See Video to Reveal this Text or Code Snippet]]

Instead, you see:

[[See Video to Reveal this Text or Code Snippet]]

This happens because Pug does not interpret copyDate as a variable in this context; it treats it as a string.

The Solution

To fix this issue, you need to use interpolation, which tells Pug to interpret the variable correctly. Here’s how you can adjust your code:

Step-by-Step Guide

Define the Variable:
First, set the variable the same way you did before. This line remains unchanged:

[[See Video to Reveal this Text or Code Snippet]]

Use Interpolation:
Instead of writing © copyDate, use the interpolation syntax # {} to output the value of the variable. Update your line like this:

[[See Video to Reveal this Text or Code Snippet]]

Final Code Example

Putting it all together, your Pug template should look like this:

[[See Video to Reveal this Text or Code Snippet]]

Expected Output

When you render the updated Pug template, you should now see:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

In summary, rendering JavaScript variables in Pug templates requires you to use interpolation. By using the syntax # {variable} within your Pug code, you can ensure that dynamic values are properly displayed on your webpage.

Don't let simple syntax issues get in the way of your project's progress. With this guide, you should be able to dynamically include JavaScript values in your Pug templates without a hitch!

Happy coding!