New Article: Do those JS performance tweaks actually work?
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ThatSoftwareDude
New Article: Do those JS performance tweaks actually work?
July 14, 2025
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Hello there! ๐
Hope you're having a great week! I just dropped a new post that I think you'll find pretty interesting.
Do JavaScript Micro-Optimizations Actually Matter?
You know those tiny performance tweaks developers often obsess over? The ones where you spend 20 minutes debating whether for loops are faster than forEach, or if caching array length actually makes a difference?
The short version: Most of the micro-optimizations we stress about are pretty much irrelevant in real-world applications. Modern JavaScript engines are incredibly smart, and they're already doing a lot of the heavy lifting for us.
But here's the thing - there are still some optimizations that can make a meaningful difference, especially when you're dealing with performance-critical code or large datasets.
In the post, I break down:
Which optimizations actually move the needle
When you should care about micro-optimizations vs. when you shouldn't
The bigger picture stuff that actually impacts your app's performance
It's one of those topics where conventional wisdom doesn't always match reality, and I think you'll find it interesting.
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