Leetcode 1389. Create Target Array in the Given Order

題目

Input: nums = [0,1,2,3,4], index = [0,1,2,2,1]
Output: [0,4,1,3,2]
Explanation:
nums       index     target
0            0        [0]
1            1        [0,1]
2            2        [0,1,2]
3            2        [0,1,3,2]
4            1        [0,4,1,3,2]

解法思維

運用splice(索引位置, 要刪除元素的數量, 元素)

var createTargetArray =(nums, index)=> {
    let result=[]
    for (let i = 0; i < nums.length; i++) {
            result.splice(index[i],0,nums[i])
    }
    return result
};