Glossary term
What is code execution phase? Meaning for developers
Phase 2. The engine goes back to line 1 and runs the code for real, replacing each undefined placeholder with its actual value.
Learn it properly · JavaScript CoreLesson 1: How JS Works: The Execution ContextEverything in JavaScript happens inside an execution context. How the global one is created — memory phase first, then code phase — and why that order explains almost everything that follows.