Beginner JavaScript Tutorial – 3 – Variables

In this tutorial, we’ll be looking at variables in JavaScript. Variables are a way of storing data in your code, and they can be used to store anything from a number to a string of text.

To create a variable in JavaScript, you use the var keyword. For example, here’s how you would create a variable called myNumber and store the number 5 in it:

var myNumber = 5;

You can also create a variable by simply assigning a value to it, like this:

myNumber = 5;

Once you’ve created a variable, you can access its value by using the variable name followed by a period and the variable’s name. So, for example, to access the value stored in the myNumber variable, you would use the following code:

myNumber;

You can also change the value of a variable by using the assignment operator (=). For example, this code would change the value of the myNumber variable to 10:

myNumber = 10;

Variables are a very important part of programming, and you’ll be using them a lot in JavaScript. In the next tutorial, we’ll be looking at data types, which are the different types of data that variables can store.