3-6

[ChristerNilsson]

Here is my suggestion, yours is fine to.

• Fewer lines of code
• assert makes it possible to see how it works without executing it.
• using console.log outside the function, makes it possible to check with assert.

function vehicleInfo(color, vehicle, years) {
	const type = vehicle < 2 ? "car" : vehicle == 2 ? "bike" : "vehicle" 
	const age = years < 1.5 ? "new" : years <= 4 ? "slightly used" : "used" 
	return "This is a " + age + " " + color + " " + type
}

assert(vehicleInfo('blue', 1, 1), 'This is a new blue car')
assert(vehicleInfo('red', 2, 2), 'This is a slightly used red bike')
assert(vehicleInfo('yellow', 3, 5), 'This is a used yellow vehicle')
assert(vehicleInfo('green', 1, 1), 'This is a new green car')
assert(vehicleInfo('black', 2, 2), 'This is a slightly used black bike')