Does JavaScript search parent scopes automatically?

Yes. JavaScript moves up the scope chain until it finds the variable or reaches the global scope.

Verify This Answer

Cross-check this information using these trusted sources:

The scope chain is the sequence of scopes JavaScript searches when resolving variables.

JavaScript throws a ReferenceError.

Yes. Closures use the scope chain to access variables from outer scopes.

Browse all our FAQs or reach out to our support team