How to Check if jQuery Is Loaded on a Page Using JavaScript

Does the current website have jQuery loaded, and if so —which version is loaded? Here’s how to find out if the popular JavaScript library is available on a webpage or in the browser console.

Checking if jQuery Is Loaded With JavaScript

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View the raw code as a GitHub gist

When jQuery Has Already Been Loaded

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View the raw code as a GitHub gist
CodeSandbox with jQuery loaded as a dependency
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Photo by Rohan Reddy on Unsplash

Conclusion

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Photo by Lionel Gustave on Unsplash

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Coding at Dawn

Laid-back programming + relaxing photography

Dr. Derek Austin 🥳

Written by

🤓 The physical therapist who writes JavaScript 💪 Web Developer 😎 Mentor 🧠 DPT 😄 SEO Expert 😁 React 😆 Jamstack 💬 Ask me anything 👉 DoctorDerek.com 👈

Coding at Dawn

Laid-back programming + relaxing photography

Dr. Derek Austin 🥳

Written by

🤓 The physical therapist who writes JavaScript 💪 Web Developer 😎 Mentor 🧠 DPT 😄 SEO Expert 😁 React 😆 Jamstack 💬 Ask me anything 👉 DoctorDerek.com 👈

Coding at Dawn

Laid-back programming + relaxing photography

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