JavaScript for Beginners (JVS1)

Programming, JavaScript

Learn to write and run your own JavaScript scripts directly in the browser, and understand core concepts like variables and data types, control structures and DOM manipulation to make web pages interactive and dynamic.

This practical course uses an interactive approach: you will use the browser console and debugger, test events and form validation, and learn AJAX to exchange data with servers, finishing each topic with hands-on examples and short exercises.

Location, current course term

Brno + online (volitelně)	11/10/2025 - 11/12/2025 CZECH Order 3/2/2026 - 3/4/2026 CZECH Order
Praha + online (volitelně)	12/8/2025 - 12/10/2025 CZECH Order 3/2/2026 - 3/4/2026 CZECH Order
Custom	Customized Training (date, location, content, duration)

The course:

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• Introduction
1. History, main advantages and some drawbacks
2. Libraries
3. Other runtimes — interpreters outside the browser
4. Browsers and developer tools

• Basic syntax
1. Ways to include JavaScript in HTML, the noscript tag
2. Declaring variables and constants
3. Primitive data types
4. Operators — assignment, arithmetic, logical, comparison, string
5. Basic functions for working with variables
6. Conditions: if, else, switch, case
7. Loops: for, while, do while
8. The window object
9. Core browser objects — window, screen, location, history, navigator

• Key functions and objects
1. Dialog and input functions — alert, confirm, prompt
2. Timing functions — setTimeout, setInterval
3. Core objects Array, String, Number, Boolean, Date, Math

• Practical programming
1. The Console object
2. Debugging and stepping through code
3. Syntax errors vs runtime errors
4. Catching errors with try...catch
5. Types of thrown errors, Error instances

• Functions and structuring
1. What is a function, ways to create functions
2. Returning values and interrupting execution
3. Variable visibility (scope)

• HTML DOM
1. What the DOM is and how it works
2. Structure of HTML node objects
3. Selecting nodes, CSS selectors
4. Key node types and properties
5. Functions for manipulating nodes and attributes
6. Creating, replacing and removing nodes

• Events
1. Building a dynamic web
2. Adding event listeners and using them
3. Behavior of the this context
4. Using the Event object
5. Preventing default actions (stop form submit, stop link)

• Forms
1. Getting values
2. Validating values
3. Capturing the submit event
4. Showing output to the user

• AJAX (Asynchronous JavaScript and XML)
1. Sending data with GET and POST
2. Serializing data for sending
3. Processing responses
4. Handling server errors

• Practice: build a small interactive calculation app on a web page

Assumed knowledge:

Use Windows or Mac, abstract thinking, and completed HTML and CSS basics; English and prior programming help, and knowing how to type (){}=; saves time.

Recommended previous course:

HTML and CSS — Fundamentals of Web Page Development (HTML1)

Recommended subsequent course:

Advanced JavaScript and Introduction to Node.js (JVS2)

Schedule:

3 days (9:00 AM - 5:00 PM )

Course price:

472.00 € ( 571.12 € incl. 21% VAT)

Language: