从JavaScript中的嵌套对象数组中提取值

function extractValue(objArray, key) {
  let result = [];
  for (let i = 0; i < objArray.length; i++) {
    if (typeof objArray[i] === 'object') {
      result = result.concat(extractValue(objArray[i], key));
    } else if (objArray[i] === key) {
      result.push(objArray[i]);
    }
  }
  return result;
}

// 示例用法
const data = [
  { id: 1, name: 'John', children: [{ id: 2, name: 'Alice' }] },
  { id: 3, name: 'Bob', children: [{ id: 4, name: 'Charlie' }] }
];

const result = extractValue(data, 'name');
console.log(result); // 输出：['John', 'Alice', 'Bob', 'Charlie']

function extractValue(objArray, key) {
  let result = [];
  const stack = [...objArray];
  while (stack.length) {
    const item = stack.pop();
    if (typeof item === 'object') {
      for (let prop in item) {
        stack.push(item[prop]);
      }
    } else if (item === key) {
      result.push(item);
    }
  }
  return result;
}

// 示例用法
const data = [
  { id: 1, name: 'John', children: [{ id: 2, name: 'Alice' }] },
  { id: 3, name: 'Bob', children: [{ id: 4, name: 'Charlie' }] }
];

const result = extractValue(data, 'name');
console.log(result); // 输出：['John', 'Alice', 'Bob', 'Charlie']