🔰expression

🚧 施工中

Swift ⟩ concept ⟩ expression

evaluates to a value (may cause side effects).

🔸 定義

GRAMMAR OF AN EXPRESSION

• expression → try-operator opt await-operator opt prefix-expression infix-expressions opt

• expression-list → expression | expression , expression-list

👥 相關

• an expression is a simple statement (hence, a statement).

⭐️ 重點

four kinds of expressions: primary / prefix / infix / postfix.

🔴 主題

• primary expressions

  • closure expression

• prefix expressions 🚧

• infix expressions 🚧

• postfix expressions 🚧

📘 手冊

• Expressions

🚧

what is a value? side effect?