Software Engineering

12,861 learners

Learning Simple Data Structures in JavaScript

Dive into JavaScript's sea of data structures including arrays and objects. Develop a knack for managing varying data sizes and complexities with no hesitations.

JavaScript

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5 lessons

30 practices

2 hours

Course details

Exploring the Cosmos of JavaScript Lists

Preview

Orbiting the Celestial Data Structures

Celestial Name Update in the Solar Array

Switch to Array Notation for Array Creation

Labeling the Red Planet

Cosmic Array Adjustment

Adding a New Moon to the Solar System Array

JavaScript Voyagers: Constructing the Celestial Array

Previous Course Next Course: Iterating Over Data in JavaScript

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I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

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I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

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It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

From our community

Hear what our customers have to say about CodeSignal Learn

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

Learning Simple Data Structures in JavaScript

Course details

Unit 17 practices25 min

Unit 25 practices19 min

Unit 38 practices28 min

Unit 45 practices19 min

Unit 55 practices19 min

Turn screen time into skills time

Join the 1M+ learners on CodeSignal

From our community

From our community