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JavaScript Performance Optimization Tips for 2025.

Balraj Singh on January 25, 2025

JavaScript is a powerhouse. It’s flexible, powerful, and frankly, one of the biggest reasons the web feels as interactive as it does today. But wit...
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Sahil Bisht •

Great 😃

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Balraj Singh •

Thank you!

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Zohaib Rao •

Insightful

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Balraj Singh •

Thank you!

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John •

Love this

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Balraj Singh •

Thank you!

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Danish •

Very detailed and insightful!

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Balraj Singh •

Thank you!

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Ciphernutz •

Great insights, A must-read for developers aiming to write efficient and scalable code!

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Balraj Singh •

Appreciate it!

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Obieze Ezeugo Felistus •

An interesting read. thanks 👍

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Balraj Singh •

Thank you!

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attendance keeper •

Outstanding!

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Balraj Singh •

thank you!

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moorthidharmaraj •

Really helpful.

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Balraj Singh •

Thank you!

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Vlad •

Great!

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Balraj Singh •

thank you!

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Wilointouch Wilo •

Very nice

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Balraj Singh •

thank you!

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ThemeSelection •

Insightful. 💡 Thanks for sharing.

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Ray •

Great list, especially point #4. I’ve seen too many devs jump straight into heavy frameworks only to end up with bloated DOM interactions. I recently challenged myself to build a full car showroom using zero frameworks—just pure Vanilla JS. Managed to hit a 96/100 Lighthouse score by focusing on exactly what you mentioned: minimizing render-blocking scripts and keeping the main thread clean. Nothing beats the raw speed of a well-optimized Vanilla script in 2025

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david duymelinck •

Reduce javascript with html-first guidelines.

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Lepe •

Another useless chat gpt article 🙄

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Balraj Singh •

Useless for some, helpful for others. The good thing about content is—it finds its audience. :)

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Serhii Viazkov •

“Give customer a chunk” and imagine what angular will say with its smallest .5 mb bundle

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Jane Smith •

Great tips! Performance optimization is the game changer for modern web apps. Loved the focus on testing and leveraging the basic optimization checklist. And definitely agree on never slowing down :)

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Ivan •

Solid list but some examples would be nice

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Pravin Jadhav •
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ODO CHIDIEBERE •

I looks good seeing things like this

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Bhat Aasim •

Insightful. Thanks for sharing

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AIToolsList •

Good!

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Masum al Mamun •

Very Informative,,,

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BrightSide SEO •

Nice!