🔸element

a value item contained in an array.

JS ⟩ object ⟩ built-in ⟩ Array ⟩ element

the value(s) stored in the Array.

⭐️ 重點

array elements are usually accessed by property access expression, using dot notation (.) / bracket notation [].

deleting an array element leaves a “hole” in the array and does not change the array’s length❗ (sparse array)

👥 相關

• ✅ array elements are accessed throught element index using bracket notation [].

• array element is a lvalue.

• ...iterable expands an iterable in places where elements are expected.

📗 參考

📘 手冊

• Guides ⟩ Arrays ⟩ Accessing and modifying array items ⭐️