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







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