如何在javascript中过滤数组

const numbers = [1, 2, 3, 4, 5];
const evenNumbers = numbers.filter(num => num % 2 === 0);
console.log(evenNumbers); // 输出 [2, 4]

const numbers = [1, 2, 3, 4, 5];
const evenNumbers = numbers.reduce((filteredArray, num) => {
  if (num % 2 === 0) {
    filteredArray.push(num);
  }
  return filteredArray;
}, []);
console.log(evenNumbers); // 输出 [2, 4]

const numbers = [1, 2, 3, 4, 5];
const evenNumbers = [];
for (let i = 0; i < numbers.length; i++) {
  if (numbers[i] % 2 === 0) {
    evenNumbers.push(numbers[i]);
  }
}
console.log(evenNumbers); // 输出 [2, 4]