如何从具有最高键值和名称的数组中返回对象-JavaScript？
假设我们有一个对象数组，其中包含有关测试中某些学生的分数的信息-
const students = [
{ name: 'Andy', total: 40 },
{ name: 'Seric', total: 50 },
{ name: 'Stephen', total: 85 },
{ name: 'David', total: 30 },
{ name: 'Phil', total: 40 },
{ name: 'Eric', total: 82 },
{ name: 'Cameron', total: 30 },
{ name: 'Geoff', total: 30 }
];我们需要编写一个JavaScript函数，该函数接受一个这样的数组并返回一个对象，该对象的名称和total的值对于total而言是最高的。
因此，对于上述数组，输出应为-
{ name: 'Stephen', total: 85 } 示例
以下是代码-
const students = [
{ name: 'Andy', total: 40 },
{ name: 'Seric', total: 50 },
{ name: 'Stephen', total: 85 },
{ name: 'David', total: 30 },
{ name: 'Phil', total: 40 },
{ name: 'Eric', total: 82 },
{ name: 'Cameron', total: 30 },
{ name: 'Geoff', total: 30 }
];
const pickHighest = arr => {
const res = {
name: '',
total: -Infinity
};
arr.forEach(el => {
const { name, total } = el;
if(total > res.total){
res.name = name;
res.total = total;
};
});
return res;
};
console.log(pickHighest(students));输出结果
这将在控制台上产生以下输出-
{ name: 'Stephen', total: 85 }