Easy To Understand ✅ Go  :)
Go []\nfunc getConcatenation(nums []int) []int {    \n    return append(nums, nums...) // unpack and append each element of nums to original slice.\n}\n\n\n\n\n
```Go []\nfunc getConcatenation(nums []int) []int {    \n    return append(nums, nums...) // unpack and append each element of nums to original slice.\n}\n```\n\n\n```\nUpvote! It only takes 1 click :)\n```\n![honest-work-meme-cb0f0fb2227fb84b77b3c9a851ac09b095ab74d8-s1100-c50.jpg](https://assets.leetcode.com/users/images/dd99974d-edcf-46a7-b0f3-b9aa04e613d0_1700789655.8980343.jpeg)\n
['Go']