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JavaScript Tutorial

Learn JavaScript

Learn JavaScript: kickstart your web development journey with this free tutorial on JavaScript. While learning JavaScript, you'll practice experimenting with code and gain valuable insight into one of the most popular programming languages.

Ready to start your career in Development? Find out more about BrainStation's Web Development Bootcamp

Start Coding With This JavaScript Tutorial

With technology playing an increasingly important role in our lives, it's never been more critical to have some basic knowledge of programming concepts, and that often includes learning JavaScript. Along with HTML and CSS, JavaScript is a key programming language for web and software development, and it is considered a good language for beginners because it is so intuitive – you don't need to be an experienced Developer to grasp its core concepts or get started learning to code.

In this free, modern JavaScript tutorial, you can learn and practice JavaScript basics on your own schedule through a series of micro-lessons and examples.

JavaScript is one of the world's most popular programming languages, giving life and interactivity to millions of web pages and mobile apps. JavaScript is the standard programming language of the web, and that is not an exaggeration. JavaScript is used on 95 percent of all websites in the world, which equates to more than 1.5 billion websites, and an even larger amount of web pages (and JavaScript is supported by virtually every major web browser including Chrome, Mozilla Firefox, and so on).

What You’ll Learn in This JavaScript Tutorial

This free JavaScript tutorial is designed for programming beginners who are eager to learn JavaScript and take their first step into software engineering, game development, and client-side web development. The JavaScript programming language is a great first language to learn, because it introduces fundamental programming concepts that apply to other languages while being fun and intuitive to learn. But even if you've tried to learn how to program before, this JavaScript course can be a great intro and refresher for those who want to revisit JavaScript basics and learn how to add interactivity to an HTML page.

JavaScript is a language of choice for tech companies like PayPal, Netflix, Groupon, Uber, and more, and through this tutorial, you’ll learn a variety of essential JavaScript skills and programming knowledge. By the end of this course, you'll have improved your digital literacy, gained a better understanding of web browsers, object-oriented programming languages, working on a web server, and client-side web development, as well as how JavaScript plays a crucial role in making web technologies come to interactive life right in your browser window.

This tutorial covers:

  • What is JavaScript

  • Intro to JavaScript

  • JavaScript History

  • The difference between JavaScript and the Java Programming language

  • What is JavaScript used for?

  • How to use JavaScript

  • What does JavaScript do?

  • Is JavaScript a Programming Langauge

  • JavaScript fundamentals

  • JavaScript program examples

  • How to learn JavaScript

  • JavaScript file Naming Conventions

  • JavaScript Comment

  • JavaScript Variables

  • JavaScript class variables

  • JavaScript static variables

  • JavaScript Print variables

  • JavaScript const

  • JavaScript let

  • JavaScript operators

  • JavaScript assignment

  • JavaScript data types

  • JavaScript String

  • JavaScript String Includes

  • JavaScript string functions

  • JavaScript string replace

  • JavaScript split string or split

  • JavaScript string length

  • JavaScript string to number

  • JavaScript Numbers

  • JavaScript Boolean

  • JavaScript Array

  • Array push

  • Array pop

  • Array includes

  • Array indexOf

  • JavaScript objects

  • Dot Notation

  • Bracket Notation

  • JavaScript Set

  • JavaScript Casting

  • Implicit Type Casting

  • Implicit Type Conversion to Number

  • Implicit Type Conversion to String

  • Explicit Type Casting

  • Explicit Type Conversion to Number

  • Explicit Type Conversion to String

  • Explicit Type Conversion to Boolean

How to Learn JavaScript

To learn JavaScript, you should explore self-guided online courses and free resources, consider a dedicated coding bootcamp or JavaScript course, build out the basic building blocks of your web development knowledge by learning other programming languages like HTML and CSS, and finally put your JavaScript skills into practice by working on your own real-life projects.

Why Learn JavaScript?

You should learn JavaScript because it is perhaps the most versatile and popular programming language for web development. JavaScript code is the crucial top layer after HTML and CSS that turns static web pages into an interactive environment with dynamic design elements, embedded multimedia and animations, and crucial functional elements like form validation.

For would-be Web Developers who aren't sure which programming language to start with, here are the top reasons why you should learn JavaScript:

JavaScript basics easy for beginners

One reason to learn JavaScript is that it is relatively easy and intuitive to grasp for coding beginners.

Since JavaScript is already installed on every web browser, there is nothing stopping anyone interested in learning JavaScript from getting started. Because JavaScript is so popular and ubiquitous, there is no shortage of online communities and resources to help you build your JavaScript knowledge at your own pace. And because the learning curve is not particularly steep, you won't have to master advanced concepts before you can get your hands dirty with a real-world project and begin seeing real results.

JavaScript skills are transferable

Learning JavaScript as a first scripting language is a good strategy because you will be able to apply what you've learned to virtually any other coding language you decide to learn, whether that's Java, Python, HTML, CSS, or C++.

Once you've mastered its syntax and understand how JavaScript objects, looping constructs, procedures, functions, and more all work, you will be in a great position to expand your knowledge to other areas of development.

JavaScript applications are countless

JavaScript is highly versatile, and so are Developers with highly developed JavaScript knowledge.

In other words, whether you're interested in web development, game development, or creating mobile apps, JavaScript will be a crucial tool for you. JavaScript can be used to develop on the client side using Angular or on the server side using Node.js, while React and Electron are just two of the JavaScript tools that will help you create great apps.

Once you've mastered JavaScript, you could qualify for a job in software development, full-stack web development, information security software engineering, or even machine learning. The number of potential JavaScript uses can seem endless.

High demand for JavaScript experts

Perhaps the best reason to learn JavaScript is that it will help you advance in your career or establish an entirely new career.

Given JavaScript's status as the world's most popular programming language, it is no surprise that companies are keen to hire talented Developers who know how to pull off advanced projects with JavaScript.

A 2020 survey from Devskiller found that 72 percent of companies are looking to hire JavaScript experts, while Developer surveys from HackerRank found that although JavaScript is the top language hiring managers are looking for in Web Developer candidates, only 42 percent of student Developers claim to have JavaScript proficiency.

As a result, the average salary for JavaScript skills is high — another reason why learning JavaScript could be a big career boost. A JavaScript Developer in the United States earns an average salary of nearly $110,000 according to ZipRecruiter, and JavaScript skills can also correlate to a pay bump for other web development jobs.

Is JavaScript Hard to Learn

No, JavaScript is not hard to learn compared to other scripting languages and it is considered a good programming language for beginners. Still, learning JavaScript quickly will depend on finding the right courses, bootcamp, or resources, building and maintaining a learning plan, and gaining a solid understanding of JavaScript fundamentals before moving on to more advanced topics.

Whether or not JavaScript is hard to learn will also come down to your past experience with computer programming.

How Long Does it Take to Learn JavaScript?

It takes anywhere from six to nine months to learn JavaScript from scratch if you are following a self-guided learning plan. If you have any kind of background in computer programming or even if you understand the basics of reading HTML code, it will be easier to learn JavaScript fast through courses or advanced tutorials. Coding bootcamps and other courses can help you learn JavaScript and get up to speed in as little as three months of intensive study.

Best Way to Learn JavaScript

The best way to learn JavaScript is to explore free online resources, consider taking a development course or bootcamp, get involved with JavaScript communities, and to gain first-hand experience with JavaScript by working on your own websites and projects.

Although the best approach for how to learn JavaScript fast will vary based on your professional experience and educational background, the following methods together constitute the best way to learn JavaScript.

Get started with a free JavaScript tutorial

If you're completely new to programming, you should gather the basics of JavaScript as the first step in your learning journey. The Internet is full of articles, webinars, tutorials, and guides — like this one — that are intended to simplify JavaScript for beginners. Those resources are full of helpful simple tips, examples, detailed explanations, and short lessons to help you begin to develop your JavaScript skills.

Try JavaScript books

Aspiring computer programmers who want to learn JavaScript quickly might benefit from going beyond the free tutorials to more advanced resources. There are countless reference books that offer complete overviews of JavaScript techniques, tools, terminology, and more.

A few popular titles include:

  • JavaScript and JQuery: Interactive Front-End Web Development by Jon Duckett
  • Eloquent JavaScript: A Modern Introduction to Programming by Marijn Haverbeke
  • Learn JavaScript VISUALLY by Ivelin Demirov
  • JavaScript: The Definitive Guide by David Flanagan

Take a web development or coding bootcamp

Trying to learn JavaScript from scratch on your own will be time-consuming and difficult, which explains why coding bootcamps have exploded in popularity over the past 10 years.

A good web development bootcamp program will allow you to master JavaScript essentials under the instruction of top industry professionals. At the same time, you'll also likely gain a thorough understanding of other programming languages needed in web and software engineering, including Python, Java, HTML, CSS, and C++.

A program at a top institution will also typically offer career services, networking events, and thought leadership panels that will be a great help if your goal is to establish a career in development.

Network with other Developers

One way to learn JavaScript more thoroughly and efficiently is to lean on other Programmers.

There are robust online communities of JavaScript experts who can answer questions, provide support, or provide feedback on your projects. Meetups and other networking events are also a great way to expand your social and professional network of JavaScript pros.

Of course, that network will be valuable not only as you look to gain core JavaScript competency, but also as you look to build a career.

Work on your own JavaScript projects

As soon as you feel you've got your head around the basics of JavaScript knowledge, you should start working on applying it in a variety of different ways on your own projects.

You could try using JavaScript code to design a super-interactive web page, make a playable video game, or create a simple calculator. These experiments could be just for you, or they could ultimately form the basis of a Developer portfolio if you are happy with your results.

Either way, these projects will be a good test of your newfound JavaScript expertise and should help you identify gaps in your knowledge and skillset as you continue in your JavaScript journey.

How to Apply Your New JavaScript Skills

With this interactive JavaScript tutorial, you'll have the opportunity to learn JavaScript and apply key web concepts through bite-sized exercises. You'll also be in a perfect position to explore the world of JavaScript code, web development, object-oriented languages, and more.

BrainStation offers a number of certificate courses, a web development certification course, and a bootcamp program with more advanced material in this domain to help you build advanced skills in the JavaScript language. Programs that you could consider include:

Jump into the first lesson of the JavaScript tutorial to start learning!

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