The plain-English version
A named setting supplied outside source code.
Why it matters
Some build tools expose selected variables to browser code; placement matters.
Let’s make it click
A server reads its database connection setting from the runtime environment.
Vibe Bro’s heads-up
Some build tools embed selected values in browser code. The name or storage location alone does not make a value private.
You might also hear
- env
- .env
- configuration
- secret
The docs behind it
Documentation links checked .
Editorial review · October 28, 2026
Supported: Read the full explanation, examples, and pitfalls; no material factual error identified. References are supporting reading, not a sentence-by-sentence source concordance.