Switch to the Dutch version/Switch to the English version
  1. Home
  2. All courses
  3. IT & Software
  4. Programming
  5. JavaScript Basics

JavaScript Basics course

In this JavaScript Basics course you learn how to add interaction to your website. You work with variables, functions, arrays, objects and the DOM, and you are introduced to jQuery.

9 from 2 reviews 4,6 on Google NRTO quality mark
For a team or department? Arrange your own group, at your premises or ours. In-company for your team
  • Build interactive websites straight away
  • Your own learning objectives take centre stage
  • Personal guidance from an experienced trainer
  • A solid basis for follow-up courses
  • Practical exercises with real scripts
Mark

Your trainer: Mark 5 evaluations in total, with an average of 9,0. View the trainers

Do you want your websites to respond to clicks, input and visitor behaviour? With JavaScript you add interaction to your HTML and CSS. During this Open Learning day you build a solid foundation in this indispensable scripting language, guided by an experienced trainer.

Description

In this course you become acquainted with JavaScript, the scripting language that adds interaction and dynamics to websites. You build on your knowledge of HTML and CSS and discover how JavaScript works together with these techniques to give your sites an extra dimension.

You work under the guidance of an experienced trainer using the Open Learning format. This means you choose which topics are most relevant to you and get down to practical work straight away. You write your first own scripts, work with variables, functions, arrays and objects, and learn how to use the Document Object Model (DOM) to control elements on a page.

This course provides a solid foundation for follow-up courses on JavaScript frameworks and toolkits such as jQuery.

Topics

During this open learning day you work, with guidance, on the topics that are most relevant to you. For example:

  • JavaScript basics and history
  • Writing your first own script
  • The structure of JavaScript statements
  • Working with variables and their data types
  • Manipulating variables with operators
  • Using functions
  • Creating and editing arrays
  • Working with objects
  • Conditional statements and loops, such as if, else, switch, while and for
  • JavaScript events and event handlers
  • The Document Object Model (DOM)
  • Introduction to jQuery

Result

After this course you will know the basic principles of JavaScript and be able to write scripts yourself that add interaction to a website. You work with variables, operators, functions, arrays and objects, and you know how to use conditional statements and loops.

You understand how JavaScript works together with HTML and CSS via the Document Object Model (DOM) and can respond to events using event handlers. You have also been introduced to jQuery, giving you a solid basis for follow-up courses on JavaScript-based techniques and toolkits.

Target audience

This course is intended for website builders and novice web developers who want to make their sites more interactive. You already have experience with HTML and CSS and you're ready for the next step: learning to work with JavaScript to really bring your websites to life.

Teaching method

You take this course in the Open Learning format. This means that, with active guidance from an experienced trainer, you work on the topics that are most relevant to you. You work at your own pace and receive immediate feedback whenever you get stuck or want to go into more depth.

Short explanations alternate with practical exercises at the computer. This way you write your own JavaScript code from the start and see the result in the browser straight away. You take the theory and exercise files home with you, so that you can continue building on your own after the course day.

Prior knowledge

You need a basic knowledge of HTML and CSS. Some experience in building simple web pages is also useful. Programming experience is not required; you learn JavaScript step by step under the guidance of an experienced trainer.

Comments

You take this course in the Open Learning format: one day of working independently on JavaScript with the active guidance of an experienced trainer. You decide which topics you tackle and at what pace you work. Basic knowledge of HTML and CSS is required.

Course format

This training is offered on the basis of our Open Learning teaching method. This means that you work independently, with active guidance from our trainer, to master the material. That way you can achieve your learning objectives at your own pace, without being held back by fellow participants working faster or slower. The trainer makes sure that you stay on schedule and meet your learning objectives. This form of learning leaves room for a tailored approach. You have the opportunity to bring in examples from your own practice and IT environment, so that your learning is even more specific. more...

Practical information

Number of days
3 days
Course times
from 10 am to 5 pm
Teaching hours
18 hours
Education level
Suitable for all levels
Preparation time
None
Included
Course materials and lunch on site
Certificate
At the end of the course you will receive a certificate of attendance

Language

The course is given in Dutch as standard. The trainer speaks English. English-language course materials can be used. If at least 3 participants register, the course can also be given entirely in English.

This course for your team?

Plan your own group on a date that suits you, at your office, at our premises or online. We tailor the content to your day-to-day work, and training a whole group is cheaper than individual bookings.

  • Your date and location
  • Tailored content
  • Multiple groups or an academy are also possible
  • More than 25 years' experience
Request a quote No obligation, an adviser will be in touch shortly How in-company works

The trainers for this course

Ratings from participants after completing their course, across all courses by this trainer.

Mark

Trainer in IT, didactics and AI 9,0

What others say about this course

9
JavaScript Basics course: average 9 from 2 reviews

“This course is well worth taking if you have no experience with JavaScript yet.”

P. Anuels
Praclox Software B.V.9.8

"Very pleasant atmosphere, not a large group of participants. Convenient location relative to Utrecht Central Station. Lunch was well taken care of. In consultation with the trainer, you can steer things considerably in the direction you want."

E. Roes
ROC A12 locatie Velp8.2

Training formats

Classroom

3 days€ 1875,-
  • Pleasant venue with a good trainer
  • Small groups
  • Inspiring and motivating
Choose a date

Online

3 days€ 1620,-
  • Online with a trainer
  • Personal
  • Practical and interactive
Choose a date

In-company

Bespoke trainingOn request
  • 100% for your group
  • Bespoke training
  • At your place or ours
View in-company

Workshop

Up to 4 hours for groupsOn request
  • Suitable for events
  • Interactive and inspiring
  • Large groups too
Request a quote

Private training

At our place or yoursOn request
  • 100% just for you
  • Achieve a lot in little time
  • Whenever you want
Request a quote

Frequently asked questions

What do you learn in the JavaScript Basics course?
In the JavaScript Basics course you learn to add interactivity to websites using JavaScript. You cover the fundamentals, variables, operators, functions, arrays, objects, conditional statements and loops. You also work with events, event handlers and the Document Object Model (DOM). The course concludes with an introduction to jQuery, so that you have a solid basis for follow-up courses.
How long does the JavaScript Basics course take and what is the delivery format?
The JavaScript Basics course takes three days and is given in the Open Learning format. This means that, with active guidance from an experienced trainer, you work on the topics that are relevant to you. You work in a small group at your own pace, with immediate feedback. That way you learn the practical basics of JavaScript.
Do you need prior knowledge for the JavaScript Basics course?
Yes, for the JavaScript Basics course you need a basic knowledge of HTML and CSS. JavaScript works together with the HTML and CSS of your website and adds interactivity to it. Programming experience is not a requirement, as you start with the basic principles and learn step by step to write your first own scripts under the guidance of an experienced trainer.
Who is the JavaScript Basics course suitable for?
The JavaScript Basics course is suitable for website builders and beginning web developers who want to add more interactivity to their websites. You will benefit from this course if you already work with HTML and CSS and want to give your code a new dimension. It also provides a solid basis as a stepping stone to follow-up techniques such as jQuery.
Do you receive a certificate after the JavaScript Basics course?
Yes, after completing the JavaScript Basics course you receive a certificate of participation. This certificate confirms that you have attended the training course and have been introduced to the main components of JavaScript, such as variables, functions, arrays, objects, the DOM and jQuery. You can add the certificate to your CV or LinkedIn profile as proof of your new skills.
What can you build on your website after the JavaScript Basics course?
After the JavaScript Basics course you'll be able to add interactive elements to websites you've built with HTML and CSS. Think of form validation, click actions, dynamic content via the Document Object Model (DOM) and event handlers that respond to user behaviour. You'll write your own scripts with variables, functions, arrays and loops, and get to know jQuery as a next step.
When should you choose a classroom JavaScript course rather than self-study via YouTube or an online platform?
Self-study works fine for the syntax, but often grinds to a halt as soon as you have to apply concepts such as scope, the DOM or event handlers in combination. A classroom course is worthwhile if you want results faster, need targeted feedback or keep getting stuck on error messages that online tutorials do not explain. The JavaScript Basics course at Learnit is taught in the open learning format: you work on exercises yourself, while an experienced trainer looks on and steers where needed. You decide which topics take priority, for example variables and functions, or rather arrays, objects and the DOM. Choose self-study if you have plenty of time and are patient. Choose this course if you want to lay a working foundation and get direct answers about your own code.
What is the difference between learning JavaScript in this Open Learning course and a fixed classroom schedule?
In the open learning format you decide for yourself which topics you tackle during the course day, with active guidance from a trainer. You work through the material at your own pace and can go deeper into what's relevant to your work, for example the DOM, events or a first introduction to jQuery. In a fixed classroom schedule everyone covers the same topics in the same order, regardless of prior knowledge. The open learning format suits you better if you already know some HTML and CSS and want to add specific JavaScript skills, or if you're bringing specific questions from a current web project. The course lasts one day and covers, among other things, variables, functions, arrays, objects, conditional statements, loops and event handlers. You work directly in practice, not just theoretically.
How does JavaScript relate to HTML and CSS, and why do you need that prior knowledge before starting with JavaScript?
HTML, CSS and JavaScript together form the three core languages of the web. HTML determines the structure of a page, CSS handles the styling and JavaScript adds behaviour and interactivity. JavaScript manipulates HTML elements via the Document Object Model (DOM) and can adjust CSS properties based on user actions, such as a click or keystroke. Without knowledge of HTML you do not know which elements you are controlling; without an understanding of CSS you lack context for visual adjustments. The JavaScript Basics course assumes that you already understand HTML tags and CSS selectors. The course builds on this with variables, functions, arrays, objects, conditional statements, loops, events and a first introduction to jQuery. If you do not yet have a basis in HTML/CSS, take an HTML and CSS course first.
Is JavaScript still the right language to learn in 2025 if I want to build interactive websites, or is it better to start with a framework such as React straight away?
JavaScript remains the standard language for interaction in the browser in 2025. Every modern website runs on it, and frameworks such as React, Vue and Svelte are all built on top of JavaScript. It is better to master the basics of the language itself before you move on to a framework. Otherwise you learn the syntax of React without understanding what happens under the bonnet, and you will get stuck later on concepts such as scope, callbacks and the DOM. In the JavaScript Basics course you learn exactly those fundamentals: variables, functions, arrays, objects, loops, events and the Document Object Model. After that you are introduced to jQuery as a stepping stone to libraries and frameworks. If you want to work with React or Vue later on, this foundation gives you a much shorter learning curve than diving straight into a framework.
What is the difference between jQuery and vanilla JavaScript, and do I need to learn both?
Vanilla JavaScript is the pure language as it runs in every browser. jQuery is a library on top of JavaScript that allows common tasks to be written more concisely, such as selecting elements, animations and AJAX calls. The JavaScript Basics course focuses on vanilla JavaScript: variables, functions, arrays, objects, loops, events and the Document Object Model (DOM). At the end you are introduced to jQuery, so that you can see the difference and know when to choose which. The order is deliberate: without an understanding of the DOM and events you will not grasp what jQuery does under the bonnet. Modern projects often no longer use jQuery, because browser APIs now provide much of the functionality themselves. Basic JavaScript knowledge therefore remains the most valuable investment.
How soon after the JavaScript Basics course can I add small interactive components to an existing website on my own?
Straight after the course day you can implement simple interactions yourself: form validation, a clickable menu toggle, an image slider or a simple calculation module. By then you will have mastered the basic syntax (variables, functions, arrays, if/else, loops) and you can use the Document Object Model to select and modify HTML elements based on events. For more complex functionality, such as retrieving data dynamically from a server or building a single-page application, you need further knowledge (asynchronous JavaScript, fetch, frameworks). The course is a starting point, not an end point. In practice: the more projects of your own you take on after the course day, the faster the material sticks. Expect to spend a few weeks practising before JavaScript really feels familiar.

Others also viewed

HTML and CSS BasicsJavascript Training E-learning

Read our blog

HTML and CSS: what is the difference?Building dynamic websites with JavaScriptHow to back up your WordPress websiteLearning to program: which language should you choose?