🔀if

🚧 under construction

JS ⟩ statement ⟩ control flow ⟩ branch ⟩ if

(statement)

if (condition) statement                     // one-way branch
if (condition) statement1 else statement2    // two-way branch

🧨 雷區

else clause is part of the nearest if statement.

if (expr1) statement1    // not this one
    if (expr2) statement2      // ... is part of this if statement
    else statement3            // else clause ...

👥 相關

• switch - multiway branches.

• falsy values.

📗 參考

• JavaScript: The Definitive Guide ⟩ 5.3.1 if

📘 手冊

• Statements and declarations ⟩ control flow ⟩ if