JavaScript programming: JavaScript for beginners

What are JavaScript programs and how do they work? What is syntax? How to write JavaScript code?

Lets start coding! Write your first JavaScript code. Learn about the JavaScript console.

Learn about the basic building blocks of a JavaScript program: the variables.

How can you name your variables? Is any name ok? Learn more about the JavaScript syntax and the JavaScript keywords.

Learn about the variable types from primitive types like strings and numbers to object and undefined.

You'll use strings all the time when programming in JavaScript. Each time you want to add a message to a web page, pop up an alert or collect information from a web form you'll be dealing with strings.

In this video we go over the common tasks you can do with strings. 

Numbers are everywhere in programming. You use them to track a player's score in a game, to calculate the price of a shopping cart, or just to count the number of times a "Like" button was clicked on a page. In this video, you'll learn how to do basic math in JavaScript, you’ll understand the types of numbers JavaScript can work with; you’ll how to store numbers in variables.

I'll introduce you to a number that is not a number. Let’s say that you try to do operations that don’t make any sense. Like trying to divide a number with a string or multiply two strings. This often happens if you don’t check user input and you do calculations with this input. This results in error and bugs. Learn how to avoid these mistakes!

In this video we’ll see how to check if a number is really a number. And we’ll get to know the number that is not a number

In this video you’ll find out how to convert string to integer or to floats. And you’ll learn some more useful things you can do with numbers.

Before we move to more complex parts of JavaScript lets talk a bit more about he JavaScript syntax. Let's talk about semicolons, white space, line length, comments.

Hi, in this video you’ll learn how to capture data from your visitors and store it in a variable.

Put it all into perspective: CSS, HTML, JavaScript.

Different ways to include JavaScript into a web page. Pros and cons.

Find syntax errors in JavaScript programs. Find the meaning of life. Solve fun en engaging exercises.

JavaScript exercise where visitors will tell us about the meaning of life. 

Fun exercise, where you'll kill bugs in a program. And learn to debug a program while doing so.

In this video we’ll learn how to make decisions in JavaScript. You’ll learn how to execute part of the code only when a certain condition is met. 

In this video you'll learn about the comparison operators, else if statements and concatenated conditions in JavaScript.

Learn by doing! In the examples you'll practice if statements. You'll create simple projects where you'll use if statements.

Compare your solution with mine. Let's create a guess a number program together.

Practice if statements with a simple exercise. 

Loops make your programs more effective. No more duplicate code! Do one thing many times.

In this video we’ll take a look at the while statement, that is while loop.

Create simple projects using loops

Learn how to store multiple values into a single variable. Useful!

Learn how to access a specific item in an array.

Do you want to know how many elements are stored in JavaScript array? Learn how to count elements in the array.

In this video you will see some useful methods you’ll use with your array. You’ll learn how to add items, remove items, join arrays and so on.

Many, many times you will in your programs want to go trough elements in your array and do something with the elements. Maybe you'll be looping trough blog post and display them on a page. Or you'll check all the players in your game to see how many of them have over 100 points. So you need to know how to loop over array!

Functions are the heart of JavaScript programming. Learn how to create and call a function.

What are functions and what they can do.

You'll understand how to pass parameters. You'll understand what is an argument. You'll understand what pass-by-value means. And more.

Passing parameters into a function - unexpected circumstances

Some tips about returning a value from a function

You'll learn about the difference between global and local variables in JavaScript. From not understanding variable scope many bugs are made. Make sure you understand the scope! 

First challenge for you! Create a quote review app. In the project you'll be using everything you learned so far. So do accept the challenge!

Before you watch the solution of the challenge do try to build the project yourself. That way you'll learn most. You can contact me trough Q&A where I'll give you the review. And then we can go trough solution together.

Introduction to object oriented programming in JavaScript for beginners.

In this video you'll see the difference between object oriented programming and procedural programming in JavaScript 

You'll see how to add functionality to objects in JavaScript

We'll create an example of object.

There are 3 different types of object in JavaScript. You'll get to know them all.

Most common way to create an object in JavaScript is as object literal. We'll go trough examples .

I'll tell you some tips about object properties.

In this video we'll add functionality to an object. We'll talk about methods and functions and the difference.

One of most confusing concepts in JavaScript is the keyword this. We'll create examples and talk about how to use this.

Learn how to improve the code of existing object

What happens when you pass an object to function in JavaScript? If you don't know you'll have unexpected bugs in your code. Must watch.

Some tips and tricks on object methods in JavaScript