Programming languages1:1 mentoring

JavaScript Programming

Understand JavaScript itself, from functions and closures to the DOM and async code, not just copy working snippets.

Level:: Beginner to intermediate
Format:: 1:1 online mentoring

Free, no-obligation chat · Affordable plans that fit your budget · Start this week

1:1 personal attentionOne mentor, one student, at your pace.
Flexible timingsSessions that fit your week and time zone.
Affordable plansPlans that fit your budget.
Practise between sessionsShort problems that build confidence.

About this course

Learn JavaScript Programming online

JavaScript runs every interactive website and is used on servers too, which makes it one of the most practical languages to learn. It is also full of surprises: loose equality, the way this works, closures and asynchronous code that does not run in the order it is written. Many learners can copy working code long before they truly understand it.

This course follows the standard JavaScript curriculum: values and types, control flow, functions, arrays and objects, scope and closures, this, prototypes and classes, the DOM and events, the event loop, promises, async and await, modules and npm, and an introduction to TypeScript.

Right now our free self-study lessons cover Java and Python, so JavaScript is taught through affordable 1:1 online mentoring: a mentor explains each idea, reviews your code and works at your pace. Message us on WhatsApp or email, or fill in the short form, for a free, no-obligation chat. We will suggest a plan that fits your budget and flexible timings in your time zone, and you can start this week.

Who this course is for

Beginners who want a first programming language
Students in web development or computing courses
Self-taught learners who can copy code but want to understand it
Developers moving from Python, Java or C to JavaScript
Learners preparing for React, Node.js or interviews

Outcomes

What you'll learn

Write programs with let, const, functions, arrays and objects
Explain scope, closures and how this is decided
Use classes, prototypes and destructuring correctly
Change pages and handle events using the DOM
Explain the event loop and write async code with promises and async and await
Call web APIs with fetch and handle errors
Organise code into ES modules and use npm packages
Debug with the browser console and developer tools

Skills you'll gain

JavaScript (ES2015+)
Functions and closures
Arrays and objects
The DOM
Promises and async/await
Fetch and APIs
ES modules
npm
Debugging
Classes
TypeScript basics
Algorithms

Detailed syllabus

JavaScript Programming syllabus

Every module lists its topics and what you will be able to do. Your mentor plans sessions around them and your own goals.

Module 1
Getting started with JavaScript
Where JavaScript runs and how to write and run it.
- JavaScript in the browser and in Node.js
- The console and developer tools
- Script tags and files
- Statements, semicolons and comments
- Your first programs
By the end of this module you can
- Run JavaScript in the browser and in Node.js
- Print and inspect values in the console
Covered in 1:1 mentoring sessions
Module 2
Values, types and operators
The building blocks of every program.
- let and const
- Numbers, strings and booleans
- null and undefined
- Template literals
- Operators and precedence
- == versus ===
- Type conversion and truthiness
By the end of this module you can
- Avoid common type-conversion bugs
- Choose between let and const
Covered in 1:1 mentoring sessions
Module 3
Control flow
Decisions and repetition.
- if, else if and else
- switch
- Ternary operator
- for, while and do-while
- for...of and for...in
- break and continue
- Tracing loops by hand
By the end of this module you can
- Write branches and loops that behave as intended
- Trace a loop step by step
Covered in 1:1 mentoring sessions
Module 4
Functions
Reusable pieces of logic.
- Declarations and expressions
- Arrow functions
- Parameters, defaults and rest
- Return values
- Callbacks and higher-order functions
- Pure functions and side effects
- Immediately invoked functions
By the end of this module you can
- Break a problem into small functions
- Pass functions as arguments
Covered in 1:1 mentoring sessions
Module 5
Arrays, objects and strings
Working with collections of data.
- Array methods: push, pop, slice, splice
- map, filter and reduce
- find, some and every
- Sorting arrays
- Object literals and property access
- Destructuring and spread
- Common string methods
- JSON.parse and JSON.stringify
By the end of this module you can
- Transform data with map, filter and reduce
- Copy and update objects without surprises
Covered in 1:1 mentoring sessions
Module 6
How JavaScript works
The ideas behind most confusing bugs.
- Scope and hoisting
- Closures
- this and binding
- call, apply and bind
- Prototypes and the prototype chain
- Classes and inheritance
- Getters and setters
By the end of this module you can
- Explain a closure with an example
- Predict the value of this in a call
Covered in 1:1 mentoring sessions
Module 7
The browser and the DOM
Making web pages respond to the user.
- Selecting elements
- Changing text, attributes and styles
- Creating and removing elements
- Events and event delegation
- Forms and validation
- localStorage
- Debugging with developer tools
By the end of this module you can
- Build an interactive page with plain JavaScript
- Handle events efficiently with delegation
Covered in 1:1 mentoring sessions
Module 8
Asynchronous JavaScript
Working with data that arrives later.
- The call stack and the event loop
- setTimeout and callbacks
- Promises and chaining
- async and await
- Promise.all and error handling
- Calling REST APIs with fetch
- Loading, empty and error states
By the end of this module you can
- Explain why async code runs out of order
- Fetch data and handle failures
Covered in 1:1 mentoring sessions
Module 9
Modules, npm and tooling
Organising and sharing code.
- ES modules: import and export
- npm and package.json
- Dev servers and bundlers
- Linting and formatting
- Environment variables
- Error types and try, catch, finally
By the end of this module you can
- Split a program into modules
- Install and use a package
Covered in 1:1 mentoring sessions
Module 10
Testing and problem solving
Checking your code and practising algorithms.
- Unit tests with a test runner
- Test-driven habits
- Common interview-style problems
- Time and space complexity basics
- Reading other people's code
- Refactoring safely
By the end of this module you can
- Write tests for your functions
- Solve small algorithm problems in JavaScript
Covered in 1:1 mentoring sessions
Module 11
TypeScript basics and projects
Adding types and building something real.
- Why TypeScript
- Basic types and interfaces
- Type annotations for functions
- Planning a small project
- Git and GitHub for sharing code
- Deploying a project
By the end of this module you can
- Add simple types to a JavaScript project
- Ship a small project and explain it
Covered in 1:1 mentoring sessions

Ways to learn

How you can learn JavaScript Programming

JavaScript Programming mentor, 1:1 online

A mentor who knows this course plans sessions around your goal, explains each idea with fresh examples and checks your understanding. Personal attention, flexible timings in your time zone and affordable plans that fit your budget.

Talk to our team

How it works

Your learning journey

Four simple steps to start JavaScript Programming with a mentor. A real person replies to you; there is no booking system.

Step 1: Talk to us
Message us on WhatsApp or email, or fill in the short form. The first chat is free, with no obligation.
Step 2: Get your plan
We listen to your goal, level and deadlines, then suggest a plan that fits your budget and timings.
Step 3: Learn with your mentor
Online 1:1 sessions with a mentor who knows your course, explains clearly and checks your understanding.
Step 4: Practise & track progress
Keep going between sessions with practice, and watch your confidence grow week by week.

Learn by doing

Projects and practice

Interactive to-do app
A DOM app with add, complete, filter and delete features, saved in localStorage.
API-powered search page
A page that fetches data from a public API, debounces a search box and shows all four states.
Quiz game with classes and modules
A small game built with classes and ES modules, with unit tests for the scoring logic.
Command-line tool in Node.js
A script that reads a file, processes the data with array methods and prints a clean report.

Free practice on MentorNxt

Your progress

What you'll be able to do

Milestones from the start, middle and end of the syllabus.

Run JavaScript in the browser and in Node.js
Early on
Explain a closure with an example
Halfway
Add simple types to a JavaScript project
By the end

FAQs

JavaScript Programming: frequently asked questions

Is there a self-study option, or is it 1:1 mentoring?

Our free self-study lessons exist only for Java and Python today. JavaScript is learned through 1:1 online mentoring, where a mentor teaches live, answers questions as they come up and shapes each session around what you need next.

How much does mentoring cost?

1:1 mentoring is personal online tutoring and is affordable, with plans that fit your budget. Tell us your goals and how often you would like sessions, and our team will suggest an option that works for you.

How do I get started?

Message us on WhatsApp or email, or fill in the short form on this page. Our team replies, talks through your goals and helps you choose a mentor and a schedule. It starts with a free, no-obligation chat, and you can start this week.

Are the sessions 1:1 and can they fit my schedule?

Yes. Every session is one-to-one and online: one mentor, one learner. Timings are flexible in your time zone, so sessions can sit around school, work and family plans.

Should I learn JavaScript before React?

Yes, for most learners. React is much easier when functions, arrays, objects, closures and async code already feel familiar. A mentor can check which basics are solid and fill the gaps first.

Can a mentor help me build a portfolio project?

Yes. Mentors help you pick a project that fits your level, plan it in small steps and explain the concepts as you build it yourself, so you can talk about every part of it.

Is JavaScript a good first language?

It can be. You see results in the browser straight away. Some behaviour is surprising, so a mentor helps you build correct mental models early.

What do we need before the first session?

A laptop or desktop with a stable internet connection and a code editor if you have one. The mentor can help set one up in the first session.

Free, no-obligation chat

Talk to our team about JavaScript Programming

Tell us what you need. Our support team replies within one working day, by email or WhatsApp, whichever you prefer, and arranges your mentor.

Prefer to talk first?

Message the support team directly. We usually reply the same day.

Chat on WhatsApp Email us

Our mentors teach and explain. They never complete graded work, tests or assessments for students.

Keep going

Syllabus references

Last reviewed9 November 2026

Ready to start JavaScript Programming?

Message us on WhatsApp or email, or fill in the short form. Our team replies with a plan that fits your goal and budget, and you can start this week.

Fill in the short form

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Talk to us about a mentor

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Learn JavaScript Programming online

Who this course is for

What you'll learn

Skills you'll gain

JavaScript Programming syllabus

Getting started with JavaScript

Values, types and operators

Control flow

Functions

Arrays, objects and strings

How JavaScript works

The browser and the DOM

Asynchronous JavaScript

Modules, npm and tooling

Testing and problem solving

TypeScript basics and projects

How you can learn JavaScript Programming

JavaScript Programming mentor, 1:1 online

Your learning journey

Step 1: Talk to us

Step 2: Get your plan

Step 3: Learn with your mentor

Step 4: Practise & track progress

Projects and practice

Interactive to-do app

API-powered search page

Quiz game with classes and modules

Command-line tool in Node.js

Free practice on MentorNxt

What you'll be able to do

JavaScript Programming: frequently asked questions

Talk to our team about JavaScript Programming

Related courses

Web Development

TypeScript

React

Node.js and Express

HTML and CSS

Coding Interview Preparation

Syllabus references

Ready to start JavaScript Programming?

Learn JavaScript Programming online

Who this course is for

What you'll learn

Skills you'll gain

JavaScript Programming syllabus

Getting started with JavaScript

Values, types and operators

Control flow

Functions

Arrays, objects and strings

How JavaScript works

The browser and the DOM

Asynchronous JavaScript

Modules, npm and tooling

Testing and problem solving

TypeScript basics and projects

How you can learn JavaScript Programming

JavaScript Programming mentor, 1:1 online

Your learning journey

Step 1: Talk to us

Step 2: Get your plan

Step 3: Learn with your mentor

Step 4: Practise & track progress

Projects and practice

Interactive to-do app

API-powered search page

Quiz game with classes and modules

Command-line tool in Node.js

Free practice on MentorNxt

What you'll be able to do

JavaScript Programming: frequently asked questions

Talk to our team about JavaScript Programming

Related courses

Web Development

TypeScript

React

Node.js and Express

HTML and CSS

Coding Interview Preparation