Latest posts
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Hashing vs Encryption Difference: What Developers Get Wrong
Hashing vs Encryption Difference: What Developers Get Wrong The core hashing vs encryption difference comes down to one question: do you ever need the original value back? Hashing is a one way process that turns data into a fixed length fingerprint you can compare but never reverse. Encryption is a two way process that scrambles…
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Does CSS Minification Improve Page Speed?
Does CSS Minification Improve Page Speed? Yes, but the amount depends on how large and repetitive your stylesheet already is. In a real test, a 42kb stylesheet dropped to 29kb after minification, a 31 percent reduction, which shaved roughly 90 milliseconds off first paint on a throttled connection. That is a genuine improvement, though it…
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UUID Collisions: UUID v4 Collision Probability Math
UUID Collisions: UUID v4 Collision Probability Math The uuid v4 collision probability is not zero, but it is close enough to zero for any real system to treat it that way. A version 4 UUID packs 122 random bits, giving a space of about 5.3 times 10^36 possible values. Using the birthday bound, the point…
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How to Compare Two API Responses Before Prod Breaks
How to Compare Two API Responses Before Prod Breaks The fastest way to answer how to compare two API responses is to paste both JSON payloads into a diff tool built for structured data, one that ignores key order and highlights every added, removed, renamed, or type changed field. A plain text diff will bury…
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What Does JS Minification Do to Your Code?
What Does JS Minification Do to Your Code? So what does JS minification do? It takes your JavaScript file and strips out everything a browser does not need to run it, extra whitespace, line breaks, comments, and long variable names, then often shortens those names to single letters. The result is a smaller file that…