Arrays and Objects

Master JavaScript data structures: arrays for lists and objects for complex data

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Course Overview

Arrays and objects are the foundation of data manipulation in JavaScript. Arrays help you work with lists of items, while objects let you organize complex, structured data. Master both to handle any data challenge!

📚 4 Sections⏱️ 60 min💻 Hands-on exercises

1. Working with Arrays

Section 1

Arrays are like ordered lists or containers that can hold multiple values. Think of them as a row of numbered boxes, where each box can store something different.

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2. Array Methods

Section 2

Arrays come with built-in "methods" (functions) that help you manipulate and work with your data. These are like special tools in your array toolkit!

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3. Objects Basics

Section 3

Objects are like digital filing cabinets where you can store related information together. Instead of numbered slots like arrays, objects use named properties (keys) to organize data.

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4. Object Methods & Iteration

Section 4

Objects can do more than just store data - they can also contain functions (called methods) and we can loop through their properties!

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What You'll Learn

Array Fundamentals

Create and manipulate lists of data efficiently

Powerful Array Methods

Transform data with map, filter, reduce, and more

Object Creation

Structure complex data with key-value pairs

Object Methods & Iteration

Add functionality and loop through object properties

Start with Working with Arrays