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Map Object Basics

Learn how JavaScript Map differs from objects, with methods for easy key-value pair manipulation and preservation of insertion order.

JavaScript

JavaScript Map Object

A key-value collection that maintains insertion order and allows any type of key, with useful methods for manipulation and iteration.

JavaScript

JavaScript Map Power

Explore the Map object: a key-value collection with unique keys, supporting any type of key and maintaining insertion order.

JavaScript

Array Destructuring

Easily extract multiple values from arrays into distinct variables in a single line of code, simplifying variable assignment.

JavaScript

Array Reduce Magic

Learn how to use .reduce() to transform arrays into a single value by applying a reducer function that accumulates results

JavaScript

Closure Basics

Understand how closures allow inner functions to access outer function's variables even after the outer function has returned

JavaScript

Nullish Coalescing

Provides a way to fallback to a default value only when the left-hand side is null or undefined, unlike the || operator which checks for falsy values.

JavaScript

Spread Operator Magic

The spread operator (...) allows an iterable to expand into individual elements, useful for array manipulation, function arguments, and object cloning.

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