js遍历json对象集合

const jsonArray = [
  { id: 1, name: 'Alice' },
  { id: 2, name: 'Bob' },
  { id: 3, name: 'Charlie' }
];

for (let i = 0; i < jsonArray.length; i++) {
  console.log(jsonArray[i].name);
}

jsonArray.forEach(function(item) {
  console.log(item.name);
});

jsonArray.forEach(item => console.log(item.name));

for (const item of jsonArray) {
  console.log(item.name);
}

const names = jsonArray.map(item => item.name);
console.log(names); // 输出: ['Alice', 'Bob', 'Charlie']

const totalId = jsonArray.reduce((accumulator, item) => accumulator + item.id, 0);
console.log(totalId); // 输出: 6

function traverseJSON(obj) {
  for (const key in obj) {
    if (typeof obj[key] === 'object' && obj[key] !== null) {
      traverseJSON(obj[key]);
    } else {
      console.log(key, obj[key]);
    }
  }
}

const nestedJson = {
  a: 1,
  b: {
    c: 2,
    d: {
      e: 3
    }
  }
};

traverseJSON(nestedJson);