Node.js · Senior · Question 57 of 75

What is snapshot startup (`--build-snapshot`) useful for?

1Taking screenshots of a web page
2Backing up the database
✓Correct answer: Speeding up startup by restoring a prebuilt V8 heap with code already initialized

Explanation

It's mainly for CLIs and short-lived processes where startup time dominates, and works together with SEA.

Further reading

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