JavaScript function properties store data, enable caching, track calls, and create namespaces, improving performance and organization.

JavaScript functions as namespaces prevent name clashes, improve code organization, and enhance encapsulation, making code more readable and maintainable.

Learn how to create, access, modify, and delete properties in JavaScript objects efficiently.

Closures in JavaScript allow functions to retain access to their outer scope, enabling data privacy, async operations, and functional programming techniques.

The JavaScript length property helps count elements in arrays, characters in strings, and expected parameters in functions, making coding efficient.

Learn how to enumerate properties in JavaScript using loops and methods like for...in, Object.keys(), and Object.getOwnPropertyNames().

The JavaScript 'name' property retrieves function, class, and variable names, aiding debugging. It's read-only and adapts to expressions and arrow functions.

JavaScript's prototype enables inheritance, efficient memory use, and method sharing. ES6 classes enhance structure but retain prototype power.

Master JavaScript's call() and apply() methods to control this, borrow functions, and handle arguments efficiently. Improve code flexibility and reuse.

Learn how to extend objects in JavaScript using prototypes, Object.assign, and class inheritance for efficient code reuse.