<分区>
假设我有一段这样的代码:
const number = 3;
function fooFunction() {
let numberTwo = 5;
var answer = number + numberTwo;
return answer;
}
finalAnswer = fooFunction();
console.log(finalAnswer);
假设一个兼容 ES2015 的浏览器,使用上述代码的优点/缺点是什么,超过:
const number = 3;
function fooFunction() {
var numberTwo = 5;
var answer = number + numberTwo;
return answer;
}
finalAnswer = fooFunction();
console.log(finalAnswer);
鉴于它们都返回相同的数字,有什么优点或缺点吗?