Add Chart.js in HUGO 📈
Add Charts in HUGO with chart.js 🧑💻
HUGO - This article is part of a series.
How to Add Chart.js as a Shortcode in Hugo 🎨📊
Want to make your Hugo blog or study notes pop with beautiful charts? With Chart.js and a simple Hugo shortcode, you can add interactive graphs to any page—no coding headaches! Let’s walk through the process step by step, with easy examples and emojis to help you remember. 🚀
What is Chart.js?
Chart.js is a popular JavaScript library that lets you create stunning charts (like bar, line, pie, and even Venn diagrams!) using just a little bit of code. It works perfectly with Hugo, a fast static site generator.
Step 1: Add Chart.js and Plugins to Your Site
First, include Chart.js and any plugins you want in your site’s HTML. You can do this by adding these lines to your layouts/partials/head.html or directly in your page:
<!-- Chart.js core -->
<script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
<!-- Data labels plugin -->
<script src="https://cdn.jsdelivr.net/npm/chartjs-plugin-datalabels@2"></script>
<!-- Annotation plugin -->
<script src="https://cdn.jsdelivr.net/npm/chartjs-plugin-annotation@1"></script>
<!-- Venn diagram plugin -->
<script src="https://cdn.jsdelivr.net/npm/chartjs-chart-venn"></script>These scripts let you use all the cool features Chart.js offers, including datalabels, annotations, and Venn diagrams! ✨
Step 2: Create a Hugo Shortcode for Charts
Let’s make a shortcode called chart.html in your layouts/shortcodes/ folder. This shortcode will handle rendering any Chart.js chart you want!
Here’s a simple version:
{{ $id := delimit (slice "chart" (now.UnixNano)) "-" }}
<div class="chart">
<canvas id="{{ $id }}"></canvas>
<script type="text/javascript">
window.addEventListener("DOMContentLoaded", function() {
const ctx = document.getElementById("{{ $id }}");
new Chart(ctx, {
{{ .Inner | safeJS }}
});
});
</script>
</div>What does this do?
- Generates a unique ID for each chart so you can have many on one page.
- Sets up the HTML
<canvas>where the chart will appear. - Runs JavaScript to create the chart using the config you provide inside the shortcode.
Step 3: Use the Shortcode in Your Content
Now, you can easily add charts in your Markdown files like this:
📈 Line Chart Example
📊 Bar Chart Example
That’s it! Hugo will render these as interactive charts. 🧑💻
Step 4: Add More Chart Types (Even Venn Diagrams!)
Want to show set intersections? Just use the Venn plugin:
🟢 Venn Diagram Example
Tips & Tricks for Students 📝
- Line charts: Great for trends (like marks over months).
- Bar charts: Perfect for comparing categories (like favorite fruits).
- Venn diagrams: Awesome for set theory in math!
- Annotations: Highlight important points in your data.
- Datalabels: Show exact values on your charts for clarity.
Summary Table
| Chart Type | Use Case Example | How to Add with Shortcode |
|---|---|---|
| Line | Trends over time | type: 'line', ... |
| Bar | Category comparison | type: 'bar', ... |
| Venn | Set relationships | type: 'venn', ... |
Conclusion
With just a few steps, you can turn your Hugo site into a data-visualization powerhouse! Whether you’re explaining math concepts, showing survey results, or just making your blog more fun, Chart.js shortcodes make it easy. Give it a try and make your study notes come alive! 🚀📚
If you want more advanced examples or run into any trouble, just ask! Happy charting! 😊
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