📘arr.slice()

arr.slice() returns a new array.

💈範例

// slice           0       1        2        3         4
const animals = ['ant', 'bison', 'camel', 'duck', 'elephant'];
// ⭐️ new array                  ╰─slice(2, 4)─╯

// 2 <= index < 4
animals.slice(2,4)      // ['camel', 'duck']  

📘 手冊

• .slice() - 擷取某一段，產生新陣列。

⬇️ 應用

• arr.copy() - returns a copy of the original array.

👥 相關

• don't get confused with arr.splice().

• arr.copy()