Tag: Web Development

Learn how declarations are hoisted and temporal dead zones work.

Use closures to keep private state via captured variables.

Understand creation/execution of contexts and the call stack.

Write concise functions with => and lexical this.

Pass functions to be called later (events, timers, array methods).

Write functions that take/return other functions.

Understand where variables are visible: global, function, and block.

Compare the three common scope levels with examples.

Expand iterables/objects with … for copies and merges.

Collect remaining values with rest syntax in bindings and parameters.