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Introduction to JavaScript: First Steps

Gain insights into JavaScript fundamentals. Delve into variables, operators, functions, arrays, objects, and loops. Discover essential concepts to advance further in your coding journey with this beginner-friendly course.

Beginner

27 Lessons

Certificate of Completion

AI-POWERED

Explanations

AI-POWERED

Explanations

This course includes

85 Playgrounds

13 Challenges

11 Quizzes

Course Overview

What You'll Learn

Course Content

Apply Your Skills

Recommendations

Course Overview

This is an introduction to JavaScript for the complete beginner. It'll provide the fundamentals of the language. Topics include variables, operators, functions, arrays, objects, and loops. After this course, you should be ready to further your learning through advanced courses or other resources. There is NO installation required for this course. Code can be viewed and run directly from the lessons. This course has been created by Arnav Aggarwal, a full-stack engineer. Arnav has attended a coding boot cam...Show More

This is an introduction to JavaScript for the complete beginner. It'll provide the fundamentals of the language. Topics include ...Show More

TAKEAWAY SKILLS

JavaScript

Programming Language

Data Structures

What You'll Learn

Students will learn the basics of programming with JavaScript for web development.

Course Content

Introduction

2 Lessons

Get familiar with starting JavaScript easily, using comments to clarify code.

Introduction - Just Get Started

Comments

Variables

4 Lessons

Get started with creating and managing variables, covering types, reassignment, null, and undefined.

Creating & Naming Variables

Numbers, Strings & Booleans

Working with variables

Null & Undefined

Operators & if-statements

6 Lessons

Work your way through JavaScript operators, type coercion, if-statements, and logical comparisons.

Operators: +, -, *, /, %

Using Operators with Different Types

Introduction to if-statements

if-statements, continued

Logical Operators: !, ||, &&

Comparison Operators: <, >, <=, >=, ==, ===, !=, !==

Functions

4 Lessons

Find out about defining, using, and practicing functions, arguments, and return statements in JavaScript.

Introduction to Functions

Function Arguments

Return Statements

Function Practice

Arrays

2 Lessons

Dig into JavaScript arrays, their structure, properties, and key manipulation methods.

Arrays, Part 0

Arrays, Part 1 : Methods

Objects

2 Lessons

Investigate JavaScript objects, their dynamic properties, and the distinction between value and reference.

Introduction to Objects

Value vs. Reference

Loops

5 Lessons

Build on loops in JavaScript, handling iterations with for, while, and for-in structures.

Putting it all together

Conclusion

2 Lessons

Step through JavaScript skill enhancement, course recommendations, gratitude, and positive feedback.

Thank You & Next Steps

Testimonials

Course Author

Arnav Aggarwal

Trusted by 2.5 million developers working at companies

"These are high-quality courses. Trust me. I own around 10 and the price is worth it for the content quality. EducativeInc came at the right time in my career. I'm understanding topics better than with any book or online video tutorial I've done. Truly made for developers. Thanks"

Anthony Walker

@_webarchitect_

"Just finished my first full #ML course: Machine learning for Software Engineers from Educative, Inc. ... Highly recommend!"

Evan Dunbar

ML Engineer

"You guys are the gold standard of crash-courses... Narrow enough that it doesn't need years of study or a full blown book to get the gist, but broad enough that an afternoon of Googling doesn't cut it."

Carlos Matias La Borde

Software Developer

"I spend my days and nights on Educative. It is indispensable. It is such a unique and reader-friendly site"

Souvik Kundu

Front-end Developer

"Your courses are simply awesome, the depth they go into and the breadth of coverage is so good that I don't have to refer to 10 different websites looking for interview topics and content."

Vinay Krishnaiah

Software Developer

"I've tried probably 5-7 different sites and Educative is easily the best. It perfectly blends explanation with interactivity"

Eric Downs

Musician/Entrepeneur

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Instant Code Feedback

Evaluate and debug your code with the click of a button. Get real-time feedback on test cases, including time and space complexity of your solutions.

AI-Powered Mock Interviews

Put your skills to the test in a simulated interview setting. Receive personalized feedback based on your performance. Available in Premium & Premium Plus plans.

Adaptive Learning

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Explain with AI

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AI Code Mentor

AI Code Mentor helps you quickly identify errors in your code, learn from your mistakes, and nudge you in the right direction — just like a 1:1 tutor!

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