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The spread operator (...) in JavaScript, introduced in ES6, expands iterables into individual elements, simplifying function calls, arrays, and objects.

The JavaScript Arguments Object allows functions to handle variable arguments, though modern alternatives like rest parameters offer more flexibility.

Master JavaScript's Rest and Variable-Length Parameters to handle dynamic function arguments efficiently, boosting code flexibility and clarity.

Learn how to create, access, modify, and delete properties in JavaScript objects using dot/bracket notation and the delete operator.

Learn how to access and modify object properties in JavaScript using dot and bracket notation for dynamic, interactive web applications.

JavaScript optional and default parameters make functions flexible by handling missing arguments with undefined or preset defaults. Keep it clean!

Master JavaScript function arguments and parameters—understand their differences, use default and rest parameters, and write reusable, dynamic code.

Master JavaScript implicit function invocation—understand how 'this' works in methods, avoid context pitfalls, and use bind() for reliable scope control.

Master JavaScript indirect invocation with call, apply, and bind to control this, handle callbacks, and create dynamic, reusable code efficiently.

Master JavaScript constructor invocation—create objects with new, use this, manage prototypes, and follow best practices for inheritance and reusability.