JavaScript Execution Model

Explain the components of the JavaScript runtime: call stack, heap, and event loop.

Trace the creation and execution phases of a function's execution context.

Predict variable and function hoisting behavior in code snippets.

Differentiate between var, let, and const in terms of scope, hoisting, and the temporal dead zone.

Resolve scope chain lookups in nested function examples.

Implement closures to create private state and data encapsulation.

Use closures to solve common problems like loop variable capture and creating function factories.

Explain how JavaScript's single-threaded nature impacts application design.