在if else语句中不工作的字符串的比较

Question

请看下面的代码:

function chooseVehicle(option1, option2) {
if(option1 > option2){
return option1 + " is clearly the better choice."
}else if(option1 < option2){
return option2 + " is clearly the better choice."
}
}
console.log(chooseVehicle('Bugatti Veyron', 'Ford Pinto'))

因为字母"B"是在字母"F"我希望输出是这样的，例如:

console.log(chooseVehicle('Bugatti Veyron', 'Ford Pinto'))
"Bugatti Veyron is clearly the better choice."

输出为:

"Ford Pinto is clearly the better choice."

如果有人能帮我解决这个问题，我将不胜感激。

Answer 1

在javascript中不能使用赋值操作符比较字母顺序。而是使用localeCompare()

function chooseVehicle(option1, option2) {
if(option1.localeCompare(option2)){
return option1 + " is clearly the better choice."
}else if(option2.localeCompare(option1)){
return option2 + " is clearly the better choice."
}
}
console.log(chooseVehicle('Bugatti Veyron', 'Ford Pinto'));

或者在比较前先使用.toLowerCase()