Why does calling a function expression before assignment throw a TypeError?

Because the variable is hoisted with undefined (with var). Calling undefined() throws TypeError: x is not a function. Only function declarations are hoisted with their body.

Verify This Answer

Cross-check this information using these trusted sources:

ChatGPT

More FAQs in What Is Hoisting in JavaScript?

No. let, const, and function declarations are also hoisted.

Know More

Memory is allocated during the creation phase before code execution.

Know More

Yes. Function declarations are fully available before execution.

Know More

Still have questions?

Browse all our FAQs or reach out to our support team

View All FAQs Contact Support

Want to upskill yourself?

Our courses are taking a Coffee break, but your curiosity shouldn't. Stay engaged with namastedev linkedin, youtube, discord and other resources while you wait.