🔰context

JS ⟩ concepts ⟩ context

(this) object to which a function belongs.

🔴 主題

• key concepts

  • this - property of an execution context.

  • context vs. scope

• different contexts

  • global context

  • class body context - class body has its own this context.

⭐️ 重點

context vs. scope

• scope：visibility of variable.

• context：(this) object to which a function refers.

📗 參考

• Kevin Chisholm ⟩ What is the Difference Between Scope and Context in JavaScript?

📘 手冊

• this ⟩ global / function / eval context

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