🦠primitive

🚧 under construction

JS ⟩ value ⟩ primitive

7 primitive data types:

• 5 with wrapper： String / Number / BigInt / Boolean / Symbol

• 2 without wrapper：(⚠️ can't call methods, no properties)❗ undefined / null.

🔴 主題

• 7 types of primitives

  • null / undefined

  • Boolean / Number / String

  • BigInt / Symbol

• tools

  • isPrimitive() / isObject()

⭐️ 重點

👥 相關

📗 參考

📘 手冊

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