🔐null

JS ⟩ value ⟩ primitive ⟩ null

a literal that represents the intentional absence of any object value.

⭐️ 重點

null

• is a literal.

• is a reserved word❗

• has no primitive wrapper, can't call methods, has no properties.

null and undefined are the only two values that do not have property.❗

👥 相關

• compare： undefined

📘 手冊

• null

• difference between null and undefined