删除数组列表中的所有其他元素

# 假设我们想保留所有偶数
original_list = [1, 2, 3, 4, 5, 6]
filtered_list = [x for x in original_list if x % 2 == 0]
print(filtered_list)  # 输出: [2, 4, 6]

# 假设我们想保留所有大于3的元素
original_list = [1, 2, 3, 4, 5, 6]
filtered_list = list(filter(lambda x: x > 3, original_list))
print(filtered_list)  # 输出: [4, 5, 6]

# 假设我们想保留所有偶数
original_list = [1, 2, 3, 4, 5, 6]
filtered_list = []
for item in original_list:
    if item % 2 == 0:
        filtered_list.append(item)
print(filtered_list)  # 输出: [2, 4, 6]

// 假设我们想保留所有偶数
let originalArray = [1, 2, 3, 4, 5, 6];
let filteredArray = originalArray.filter(x => x % 2 === 0);
console.log(filteredArray);  // 输出: [2, 4, 6]