Course “JS: Objects”
Course updated on April 29, 2025
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What's included
Description
The most sophisticated data type in JavaScript is an object. Any composite data, including data with multiple values, and actions taken on them are described using this. Nearly everything, including arrays, functions, and the browser, can represent an object in JavaScript. Arrays and functions are also considered to be objects. The goal of this course is to introduce objects as data storage associative arrays.
You will learn
- Create, modify and use objects in your programs
- Efficiently extract data from objects using destructuring
- Iterate over objects using a for-of loop
- Understand the structure of hash tables
Syllabus
1 | Introduction Explore the course structure, goals, and objectives |
2 | Syntax Learn the syntax for operating objects |
3 | Modifications Learn the basic ways to modify objects |
4 | References Meet the concept of reference data type |
5 | Objects in use See real-life objects use cases |
6 | Checking if a property exists Learn how to correctly determine if an object has a property |
7 | Iterating over object properties Learn to use the for...of loop to traverse an object |
8 | Nested objects Learn the syntax for creating, reading, and modifying nested objects |
9 | Merging Learn to extend one object with data from other objects |
10 | Cloning (copying) Explore how to create shallow and deep copies of objects |
11 | Spread and creating new objects Learn to use spread (expand) operator with objects |
12 | Destructuring Learn how to write more concise code for extracting object properties |
13 | Hash tables Explore the actual object structure |
Challenges
1 | Finding differences |
2 | Query string builder |
3 | Detecting |
4 | From array to object |
5 | DNA to RNA |
6 | Roman numerals |
7 | Scrabble |
- Run code right in the browser
- Lifetime access
- Learn at your own pace
Access this and all courses with a subscription