在具有多个键的对象数组中查找最接近的数字

function findClosestNumber(objects, target) {
  let closestNumber = null;
  let minDifference = Infinity;

  for (let i = 0; i < objects.length; i++) {
    const object = objects[i];
    const number = object.number;
    const difference = Math.abs(number - target);

    if (difference < minDifference) {
      minDifference = difference;
      closestNumber = number;
    }
  }

  return closestNumber;
}

// 示例用法
const objects = [
  { key1: 'value1', key2: 'value2', number: 10 },
  { key1: 'value3', key2: 'value4', number: 20 },
  { key1: 'value5', key2: 'value6', number: 30 }
];
const targetNumber = 25;
const closestNumber = findClosestNumber(objects, targetNumber);
console.log(closestNumber); // 输出 20