arrays (nooo) practice

Exercise no. 1:
<p id="demo">Display the result here.</p>

<script>
var cars = ["Saab", "Volvo", "BMW"];
document.getElementById("demo").innerHTML = cars;
</script>

Demo:

Saab,Volvo,BMW

Exercise no. 2:
<p id="demo"></p>

<script>
var cars = ["Saab", "Volvo", "BMW"];
document.getElementById("demo").innerHTML = cars[1];
</script>

Demo:

Volvo

Exercise no. 3:
<p id="demo"></p>

<script>
var cars = ["Saab", "Volvo", "BMW"];
cars[0] = "Opel";
document.getElementById("demo").innerHTML = cars;
</script>

Demo:

Opel,Volvo,BMW

Exercise no.4:
<p id="demo"></p>

<script>
var cars = ["Saab", "Volvo", "BMW"];
document.getElementById("demo").innerHTML = cars.length;
</script>

Demo:

3

Exercise no. 5:
<p id="demo"></p>

<script>
var cars = ["Saab", "Volvo", "BMW"];
cars[cars.length] = "Mercedes";
document.getElementById("demo").innerHTML = cars;
</script>

Demo:

Saab,Volvo,BMW,Mercedes