💍nullish

null or undefined.

JS ⟩ value ⟩ nullish

null or undefined.

⭐️ 重點

Any non-nullish value has .toString() method. (usually equivalent to String())

👥 相關

• 💡jane.boyfriend?.money.more

• ℹ️obj ?. prop returns undefined if obj is nullish.

• ℹ️f ?. () returns undefined if f is nullish.

• ⛔ possible errors：

  • TypeError：cannot read properties of nullish❗

📗 參考