< html>
if...then...else...if
var stateCode = 'MO';
if (stateCode == 'OR') {
taxPercentage = 3.5;
} else if (stateCode == 'CA') {
taxPercentage = 5.0;
} else if (stateCode == 'MO') {
taxPercentage = 1.0;
} else {
taxPercentage = 2.0;
}
document.write(taxPercentage);