<!DOCTYPE html>
<html lang="en-US">
<body>
<p>This example will throw an error because we have initialized third row without declaring it.</p>
<p>Check your console.</p>
<script>
//Only two rows
var myCar = [[],[]];
// first row
myCar[0][0] = "Jaguar";
myCar[0][1] = "White";
// Second row
myCar[1][0] = "BMW";
myCar[1][1] = "Red";
// Third row (Error Occurs)
myCar[2][0] = "Benz";
myCar[2][1] = "Brown";
document.write("Car1 - "+myCar[0][0]);
document.write("<br>Car2 - "+myCar[1][0]);
document.write("<br>Car3 - "+myCar[2][0]);
</script> </body>
</html>