if condition ! falsy value


Posted by mijouhsieh on 2023-03-27

// 錯誤寫法
if(!movies || !(movies.length === 0 )) { return }

正確寫法
if(!movies || !movies.length) return

movies.length若為0 就是 false
!false 就是 true
所以不用寫(movies.length === 0)

return 在同一行,不用寫{}


#|| #OR operator #! #debug







Related Posts

Vite 安裝

Vite 安裝

Leetcode 刷題 pattern - Two Heaps

Leetcode 刷題 pattern - Two Heaps

陪你讀論文 - Center-based 3D Object Detection and Tracking

陪你讀論文 - Center-based 3D Object Detection and Tracking


Comments