// 定义一个包含对象的数组
const data = [
  { name: 'apple', color: 'red' },
  { name: 'banana', color: 'yellow' },
  { name: 'apple', color: 'green' },
  { name: 'banana', color: 'yellow' },
  { name: 'orange', color: 'orange' }
];

// 使用reduce方法统计对象值的频率
const frequency = data.reduce((acc, obj) => {
  const key = obj.name; // 选择要统计的对象属性
  if (!acc[key]) {
    acc[key] = 1;
  } else {
    acc[key]++;
  }
  return acc;
}, {});

console.log(frequency);

{
  apple: 2,
  banana: 2,
  orange: 1
}