Blog tag
Every post we've tagged this way.
Tagged: javascript
- Encoding
Base64 encoding across 5 languages: JavaScript, Python, Go, Rust, PHP
Idiomatic Base64 and Base64URL encoding/decoding in JS, Python, Go, Rust, and PHP — with the standard-library one-liners and the gotchas each language buries.
Read - Encoding
Hashing in 2026: SHA-256, HMAC and PBKDF2 across Node, Python, Go, Rust
Which stdlib function to reach for, which library to avoid, and the one-liner that gets you SHA-256 + HMAC-SHA256 in each of the big runtimes.
Read - Developer
Generating UUIDs across languages: stdlib vs libraries in 2026
v4 and v7 in JavaScript, Python, Go, Rust and PHP — which ships in the standard library, which needs a package, and the one-liner that works today.
Read - Data
NaN, null and undefined in JSON: what serialises to what
JSON has null. JavaScript has null, undefined and NaN. Python has None. This is the table of what survives each conversion — and the traps everyone hits.
Read - Finance
Why 0.1 + 0.2 !== 0.3 (and what to do with money)
IEEE-754 explained in 500 words, why every language does this, and the three correct ways to handle currency.
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