删除数组列表中的所有其他元素

def delete_other_elements(arr, target):
    new_arr = []
    for item in arr:
        if item == target:
            new_arr.append(item)
    return new_arr

# 示例用法
my_list = [1, 2, 3, 4, 2, 5, 6, 2]
target_element = 2
result = delete_other_elements(my_list, target_element)
print(result)  # 输出: [2, 2, 2]

function deleteOtherElements(arr, target) {
    var newArr = [];
    for (var i = 0; i < arr.length; i++) {
        if (arr[i] === target) {
            newArr.push(arr[i]);
        }
    }
    return newArr;
}

// 示例用法
var myArray = [1, 2, 3, 4, 2, 5, 6, 2];
var targetElement = 2;
var result = deleteOtherElements(myArray, targetElement);
console.log(result);  // 输出: [2, 2, 2]