Reduce js - reduce到数组

const numbers = [1, 2, 3, 4, 5];
const sum = numbers.reduce((accumulator, currentValue) => accumulator + currentValue, 0);
console.log(sum); // 输出: 15

const people = [
  { name: 'Alice', age: 21 },
  { name: 'Bob', age: 22 },
  { name: 'Charlie', age: 23 }
];
const ages = people.reduce((accumulator, person) => {
  accumulator[person.name] = person.age;
  return accumulator;
}, {});
console.log(ages); // 输出: { Alice: 21, Bob: 22, Charlie: 23 }

const numbers = [1, 3, 2, 5, 4];
const max = numbers.reduce((accumulator, currentValue) => Math.max(accumulator, currentValue), -Infinity);
console.log(max); // 输出: 5

const emptyArray = [];
const result = emptyArray.reduce((accumulator, currentValue) => accumulator + currentValue, 0);
console.log(result); // 输出: 0，不会抛出错误