JavaScript Essentials Online Training

By far the most popular front-end programming language, JavaScript is essential for creating modern web applications and user experiences. Regardless of your profession, JavaScript can help. It can be used to enhance your company's website, build mobile applications, or automate tedious job tasks.

By learning JavaScript, you can expand your skill set and improve your problem-solving abilities. Understanding JavaScript allows you to communicate effectively with developers, contribute to front-end development projects, and better understand full-stack development. You should consider taking this basic JavaScript course today, as it will help you propel your career forward.

For supervisors, this JavaScript training can be used to onboard new developers, curated into individual or team training plans, or as a JavaScript reference resource.

JavaScript Essentials: What You Need to Know

This JavaScript training has videos that cover topics including:

Understanding JavaScript data types, such as integers, floats, and strings
Handling errors that occur when writing JavaScript code
Using built-in JavaScript array methods
Working with functions and classes

Who Should Take JavaScript Essentials Training?

This JavaScript Essentials training is considered associate-level JavaScript training, which means it was designed for aspiring or junior software developers. This JavaScript skills course is valuable for new IT professionals looking to develop JavaScript skills.

New or aspiring software developers. Brand new software developers are the perfect audience for this JavaScript Essentials course. The language and theory will be familiar to anyone with a technical background, but the hands-on practice will provide new opportunities to grow and excel. The right way to learn JavaScript is through practice – and you get plenty of it in this course.

Experienced software developers. If you've been working as a software developer for several years already but haven't learned JavaScript, you'll want to remedy that as soon as possible. Fortunately, learning the basics through this course will be a breeze, and you’ll be ready for advanced courses in no time.

Skill:
JavaScript's Basic Built-in Array Methods
- 1. Overview
  1 min
- 2. Introduction
  1 min
- 3. The Array Constructor and .fill Method
  13 mins
- 4. The .shift and .unshift Methods
  8 mins
- 5. The .splice and .slice Methods
  13 mins
- 6. The .toString and .join Methods
  4 mins
- 7. The .includes, .indexOf, and .lastIndexOf Methods
  10 mins
- 8. Conclusion
  1 min
Skill:
JavaScript's Advanced Built-in Array Methods
- 1. Overview
  1 min
- 2. Introduction
  1 min
- 3. The .forEach Method
  10 mins
- 4. The .find and .findIndex Methods
  12 mins
- 5. The .filter Method
  9 mins
- 6. The .some and .every Methods
  8 mins
- 7. The .map and .flatMap Methods
  11 mins
- 8. Conclusion
  1 min
Skill:
JavaScript's Built-in Object Methods
- 1. Overview
  1 min
- 2. Introduction
  1 min
- 3. The .keys and .values Methods
  9 mins
- 4. The .entries and .fromEntries Methods
  11 mins
- 5. The .assign Method
  8 mins
- 6. The .freeze and .isFrozen Methods
  9 mins
- 7. The .preventExtensions and .isExtensible Methods
  8 mins
- 8. Conclusion
  1 min
Skill:
Reducing Arrays in JavaScript
- 1. Overview
  1 min
- 2. Introduction
  1 min
- 3. The .reduce Method Basics
  14 mins
- 4. Intermediate .reduce Use Cases
  15 mins
- 5. Advanced .reduce Use Cases
  9 mins
- 6. The .reduceRight Method and Starting Values
  8 mins
- 7. Conclusion
  1 min
Skill:
3 Exercises To Improve Your JavaScript Array Skills
- 1. Overview
  1 min
- 2. Introduction
  1 min
- 3. Calculate Array Min and Max
  20 mins
- 4. Recreating Built-in Methods with Reduce
  18 mins
- 5. Removing Duplicates
  10 mins
- 6. Conclusion
  1 min
Skill:
Introduction to the Lodash Library
- 1. Overview
  1 min
- 2. Introduction
  1 min
- 3. Installing Lodash into a Node.js Project
  15 mins
- 4. Adding Lodash to a Front-end Project
  8 mins
- 5. Calling Basic Lodash Functions
  16 mins
- 6. Extra Array Function Arguments
  9 mins
- 7. Conclusion
  1 min
Skill:
Basic Lodash Functions for Deleting Array Elements
- 1. Overview
  1 min
- 2. Introduction
  1 min
- 3. Main Groups of Lodash Functions
  7 mins
- 4. The .pull and .pullAll Functions
  9 mins
- 5. The .pullAllBy, .pullAllWith, and .pullAt Functions
  18 mins
- 6. The .uniq and .sortedUniq Functions
  15 mins
- 7. Conclusion
  1 min
Skill:
Comparing and Combining Arrays with Lodash
- 1. Overview
  1 min
- 2. Introduction
  1 min
- 3. The Four Main Function Groups
  6 mins
- 4. The .intersection Functions
  21 mins
- 5. The .difference Functions
  9 mins
- 6. The .union Functions
  6 mins
- 7. The .xor Functions
  6 mins
- 8. The "By" Transform Function
  8 mins
- 9. Conclusion
  1 min
Skill:
Sorting JavaScript Arrays
- 1. Overview
  1 min
- 2. Introduction
  1 min
- 3. JavaScript's Built-in .sort Method
  5 mins
- 4. Sorting with Comparator Functions
  13 mins
- 5. Preventing Array Mutation
  9 mins
- 6. Sorting Arrays of Objects and Arrays
  19 mins
- 7. Lodash Sorting Functions
  11 mins
- 8. Conclusion
  1 min
Skill:
Working with Nested Arrays in Lodash
- 1. Overview
  1 min
- 2. Introduction
  1 min
- 3. The .flatten, .flattenDeep, and .flattenDepth Functions
  21 mins
- 4. The .chunk and .partition Functions
  19 mins
- 5. The .zip and .unzip Functions
  9 mins
- 6. Conclusion
  1 min
Skill:
Object and Array Transformation with Lodash
- 1. Overview
  1 min
- 2. Introduction
  1 min
- 3. The .toPairs and .fromPairs Functions
  17 mins
- 4. The .zipObject and .zipObjectDeep Functions
  12 mins
- 5. The .countBy and .groupBy Functions
  20 mins
- 6. Conclusion
  1 min
Skill:
Working with Dates in JavaScript
- 1. Overview
  1 min
- 2. Introduction
  1 min
- 3. Creating New Dates
  15 mins
- 4. Accessing Time Units
  14 mins
- 5. Date Setter Methods
  14 mins
- 6. Conclusion
  1 min
Skill:
Introduction to JavaScript Classes
- 1. Overview
  1 min
- 2. Introduction
  1 min
- 3. Basic Class Syntax
  17 mins
- 4. Defining Methods and Static Variables
  13 mins
- 5. JavaScript Class Inheritance
  19 mins
- 6. Conclusion
  1 min
Skill:
Advanced JavaScript Class Concepts
- 1. Overview
  1 min
- 2. Introduction
  1 min
- 3. Pre-ES6 JavaScript Classes
  16 mins
- 4. The instanceof Keyword
  10 mins
- 5. Prototypal Inheritance Basics
  19 mins
- 6. Interfaces in JavaScript
  9 mins
- 7. Conclusion
  1 min
Skill:
Asynchronous Programming in JavaScript
- 1. Overview
  1 min
- 2. Introduction
  1 min
- 3. The 3 Main Asynchronous Strategies
  9 mins
- 4. Asynchronous Programming with Callbacks
  14 mins
- 5. Callback Examples
  18 mins
- 6. Asynchronous Programming with Promises
  13 mins
- 7. Asynchronous Programming with Async and Await
  6 mins
- 8. Conclusion
  1 min
Skill:
Understand JavaScript Promises
- 1. Overview
  1 min
- 2. Introduction
  1 min
- 3. Using Promises to Avoid Callback Hell
  10 mins
- 4. Converting Callbacks to Promises
  10 mins
- 5. Accessing Previous Promise Values
  8 mins
- 6. Conclusion
  1 min
Skill:
Get Started with JavaScript
- 1. Overview
  1 min
- 2. Introduction
  1 min
- 3. Run JavaScript in The Browser Console
  7 mins
- 4. Run JavaScript with HTML
  14 mins
- 5. Run JavaScript with Node.js
  13 mins
- 6. Conclusion
  1 min
Skill:
Learn JavaScript Syntax
- 1. Overview
  1 min
- 2. Introduction
  1 min
- 3. Declaring Variables in JavaScript
  13 mins
- 4. If, Else, and Else If in JavaScript
  8 mins
- 5. JavaScript's Many Different For-Loops
  17 mins
- 6. Conclusion
  1 min
Skill:
Basic JavaScript Data Types
- 1. Overview
  1 min
- 2. Introduction
  1 min
- 3. Numbers in JavaScript
  12 mins
- 4. Strings in JavaScript
  9 mins
- 5. Booleans in JavaScript
  13 mins
- 6. Conclusion
  1 min
Skill:
JavaScript Functions, Objects, and Other Types
- 1. Overview
  1 min
- 2. Introduction
  1 min
- 3. Objects in JavaScript
  21 mins
- 4. Arrays in JavaScript
  9 mins
- 5. Functions in JavaScript
  14 mins
- 6. BigInts, Symbols, and Undefined in JavaScript
  12 mins
- 7. Conclusion
  1 min
Skill:
Scoping, Equality, and Error Handling in JavaScript
- 1. Overview
  1 min
- 2. Introduction
  1 min
- 3. "Let" Variables vs. "Var" Variables
  14 mins
- 4. Double- and Triple-Equals Comparisons in JavaScript
  16 mins
- 5. Built-in Errors in JavaScript
  13 mins
- 6. Try-Catch Blocks in JavaScript
  7 mins
- 7. Conclusion
  1 min
Skill:
Working with JavaScript Arrays
- 1. Overview
  1 min
- 2. Introduction
  1 min
- 3. JavaScript Array Basics
  8 mins
- 4. Using the Spread Operator with Arrays
  13 mins
- 5. Array Equality and Passing by Reference
  14 mins
- 6. Deep-Equals Testing with Arrays
  14 mins
- 7. Conclusion
  1 min
Skill:
Working with JavaScript Objects
- 1. Overview
  1 min
- 2. Introduction
  1 min
- 3. JavaScript Object Basics
  9 mins
- 4. The Spread Operator and Object Destructuring
  18 mins
- 5. Object Equality and Passing by Reference
  14 mins
- 6. Deep-Equals Testing with Objects
  15 mins
- 7. Conclusion
  1 min
Skill:
Working with JavaScript Strings
- 1. Overview
  1 min
- 2. Introduction
  1 min
- 3. In-Depth String Details
  17 mins
- 4. Array-Related String Methods
  22 mins
- 5. Colorizing Strings with Chalk
  7 mins
- 6. Conclusion
  1 min
Skill:
Working with JavaScript Functions
- 1. Overview
  1 min
- 2. Introduction
  1 min
- 3. Basic Function Syntax
  16 mins
- 4. The "arguments" Object
  12 mins
- 5. Default Arguments in Functions
  10 mins
- 6. Functions Inside Objects
  11 mins
- 7. Conclusion
  1 min

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The .some and .every Methods

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Course overview

1 HOURS OF TRAINING

SKILLS

VIDEOS

VIRTUAL LABS

0 PRACTICE EXAMS

Shaun Wassell

Nugget trainer since 2021

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Helps me learn the skills I need when I need them

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Learn JavaScript Essentials FAQs: Cost, Training, Value

What is JavaScript and what is it best used for?

JavaScript is a programming language. JavaScript is highly versatile and gets used in many different contexts, but most often in web development or building websites and applications that work online. JavaScript is what's known as a client-side scripting language, which means it processes its instructions on the user's device and not on a faraway server. That means it's lightweight and that it can support real-time interaction from users and on-the-fly content updates.

What do I need to learn before learning JavaScript?

Even though this is an entry-level JavaScript course, there are some things you could know that would accelerate your learning. First of all: HTML and CSS. JavaScript interacts primarily with these two pillars of web development, and you should have a strong familiarity with them. Also, you should at least know what the Document Object Model is as well as programming fundamentals like variables, data types and control structures.

Is three months enough time to learn JavaScript?

Yes, three months is definitely enough time to gain a strong foundation of the key concepts of JavaScript like variables, functions and control flow. But unless you work tirelessly and solely on mastering JavaScript, it's unlikely in the extreme that you could master JavaScript in only three months. With a course like this, you can be using JavaScript in much less than three months, but mastery comes with practice, projects and experience.

Is this JavaScript Essentials course associated with any certifications?

No, rather than serve as a pathway to accreditation and certification, this course was developed to focus on tangible, practical skills in coding JavaScript. This course emphasizes a fundamental understanding of the JavaScript language and scripting languages generally. Once you've mastered the theory behind JavaScript, you'll move on to coding proficiency, DOM manipulation, event handling, error handling and more. This is a highly practical course with a strong emphasis on practice.

Who should take this JavaScript essentials course?

The most obvious audience for this entry-level JavaScript course is anyone who wants to eventually work as a web developer. JavaScript is also useful for software engineers and UI/UX designers. This course is excellent for people looking to land their first job, but even if you're already working in one of those fields, take this course to deepen your understanding of client-side scripting and managing interactive and dynamic websites and apps.

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