需要帮助在 JavaScript 中查找最接近的整数 [重复]

Question

大家好，所以我需要帮助弄清楚如何执行以下任务：

修改函数以返回 people 数组中每个人的平均年龄，四舍五入到最接近的整数。

var total = 0;
for(var i = 0; i < people.length; i++) {
    total += people[i];
}
var avg = total / people.length;
}

/* Do not modify code below this line */

const examplePeopleArray = [
  { name: 'John', age: 19 },
  { name: 'Jack', age: 21 },
  { name: 'Jane', age: 22 }
];

console.log(getRoundedAverageAge(examplePeopleArray), '<-- should be 21');

这就是我现在实现的：

for(var i = 0; i < people.length; i++) {
    total += people[i];
}
var avg = total / people.length;
}

但是，我似乎不知道如何计算整数。

有什么我忘记添加的吗？

Answer 1

function getRoundedAverageAge(people)
{
  var total = 0;
  for(var i = 0; i < people.length; i++) {
      total += people[i].age;
  }
  var avg = total / people.length;
  return Math.round(avg);
}

/* Do not modify code below this line */

const examplePeopleArray = [
  { name: 'John', age: 19 },
  { name: 'Jack', age: 21 },
  { name: 'Jane', age: 22 }
];

console.log(getRoundedAverageAge(examplePeopleArray));