❗var redeclaration

🚧 under construction

JS ⟩ variable ⟩ redeclaration ⟩ var

🚧

🔴 主題

• var redeclaration applied even in strict mode❗️ (even in strict mode)❗

• var can shadow parameter even in strict mode❗️ - parameters can be shadowed by local "var"❗

👥 相關

• variable declaration ⟩ var

• let redeclaration

⭐️ 重點

(❗redeclaration ) JS is lenient with var, strict with let.

• var redeclaration applied even in strict mode❗️, even in strict mode❗

• let redeclaration not allowed even in sloppy mode❗️, even in sloppy mode❗