Seven days per course · Your own pace
Start with your first message. Learn to work with data, write useful functions and make a webpage respond. Then build toward asynchronous applications and reliable libraries.
Change 25 to 30. Predict the new total, then run again.
Find your starting point
New to programming? Start here. The beginner course assumes no programming experience. Every available course is public, with no sign-in required.
Your first programming course
Learn values, decisions, loops and functions, then connect them to an interactive page.
After beginner JavaScript
Organize a larger application and keep asynchronous work, errors and interface state under control.
After intermediate JavaScript
Design a reusable library and explain its behavior under concurrency, cancellation and load.
More than a page to read
You learn a rule by using it. Each day gives you chances to predict, experiment and solve a problem with less help.
Read a short explanation, predict the output and run the example. Change an input to find out whether you understood the rule.
Try each exercise first. Open an idea hint, then a first-step hint if you need it. Compare your approach with the worked solution afterward.
Use checkpoints to work independently. Finish a project, tackle a different brief and return a few days later to practise from memory.
Beginner, day by day
Plan around 60–90 minutes of active study per day. Split a day into smaller sessions when needed; the order matters more than the calendar. Delayed review is extra.
Run code, name values, and build useful messages.
Make decisions and repeat work without losing track of state.
Represent a study plan with arrays and objects.
Break a problem into reusable, testable pieces.
Validate input, read errors, and check your assumptions.
Combine your skills into a tested program and save its data as JSON.
Connect code to a form, finish a project, and solve a fresh brief.
Something to show for your work
By the end of beginner, the pieces come together in a study planner with a browser interface. You will know where the data lives, how it changes and how to check the result.
Build the calculation first, then connect it to a form. Check invalid inputs and useful edge cases before taking on the independent project.
Explore the final dayYour first experiment
Planned: 50 minutesThe small example at the top already uses the same idea: store a few sessions and derive a useful total. The course teaches each piece before asking you to build the complete planner.
This editor shows console output. The beginner course introduces a separate webpage preview when you reach forms and events.
Before you begin
Start with the right expectations, then spend your time making things work.
No. Begin with JavaScript values and console programs. The course supplies the page structure when it introduces browser forms, so you can focus on the JavaScript behavior.
Yes. JavaScript beginner, intermediate and advanced are public. You do not need an account to read lessons or run their examples.
Get comfortable with JavaScript variables, functions, arrays and objects first. Then TypeScript beginner adds types to those familiar ideas.Explore the TypeScript path →
The core lessons run in your browser. Later projects include optional local setup and downloads when you are ready to work outside the site.
Start with one small program
No setup checklist. Open Day 1, change a line and see what happens. The rest can follow one lesson at a time.