Advanced
JavaScript
Q97 / 100
What is the JavaScript engine's code cache?
Correct! Well done.
Incorrect.
The correct answer is B) Compiled bytecode cached to disk by engines (V8 Code Caching) so subsequent page loads skip parsing and compilation for unchanged scripts
B
Correct Answer
Compiled bytecode cached to disk by engines (V8 Code Caching) so subsequent page loads skip parsing and compilation for unchanged scripts
Explanation
V8 serializes compiled bytecode after a script's second visit to a page. Browsers store it alongside HTTP cache. Speeds up cold starts for large frameworks.
Progress
97/100