[Maximilian In the previous course section,
we picked up important basics about JavaScript,
about the JavaScript language as a whole.
In this course section,
we are now going to see why we really need JavaScript
and we'll see its biggest strength and action
that we can interact with the so-called DOM
and you will learn what the DOM actually is in this module,
but I can already say that this in the end
will be all about using JavaScript
to select elements on the page
and to manipulate elements on the page,
HTML elements that are displayed on the page
and their styles, you can use JavaScript to change those.
And therefore, in this course section,
we are going to explore what exactly that DOM thing is,
how we can interact with it
and how we can also actually listen to events
like the user clicking somewhere
or the user entering something into an input field
and how we can then leverage JavaScript
to reach out to HTML elements that make up our website
and how we can change them with JavaScript
so that we can build interactive websites,
which consists of more than just static HTML and CSS code.
And of course,
we're not just going to dive into these topics in theory,
but you also will see plenty of examples in this module.
And in this course section,
we will then also be able to build this example,
which I showed you in the previous course section already.
We're going to learn everything we need for that
in this section now.