❗variable shadowing

🚧 under construction

JS ⟩ variable ⟩ shadowing

🔴 主題

• var can shadow parameter even in strict mode❗️ - is it possible to shadow function parameters❓

• var in block can't shadow outer let❗️❗

👥 相關

• redeclaration

  • variable redeclaration

    • var redeclaration

    • let redeclaration

  • function redeclaration

    • function in block (FiB) - treated as "redeclaration" in sloppy mode.

🗣 討論

• shadowing parameters by local variables? (my question)

📗 參考

• YDKJS: Scope & Closures (v.2) ⟩ Ch. 8 ⟩ Parameter Scope