js将数组转对象

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

const obj = array.reduce((accumulator, currentItem) => {
  accumulator[currentItem.id] = currentItem;
  return accumulator;
}, {});

console.log(obj);
// 输出: { '1': { id: 1, name: 'Alice' }, '2': { id: 2, name: 'Bob' }, '3': { id: 3, name: 'Charlie' } }

const array = [['a', 1], ['b', 2], ['c', 3]];
const obj = Object.fromEntries(array);
console.log(obj); // 输出: { a: 1, b: 2, c: 3 }

const array = ['apple', 'banana', 'cherry'];
const obj = {};
array.forEach((item, index) => {
  obj[index] = item;
});
console.log(obj); // 输出: { '0': 'apple', '1': 'banana', '2': 'cherry' }

const array = [{ key: 'a', value: 1 }, { key: 'b', value: 2 }];
const obj = array.reduce((acc, { key, value }) => {
  acc[key] = value;
  return acc;
}, {});
console.log(obj); // 输出: { a: 1, b: 2 }