JS 提取多个数组中相同的元素

Question

• arr1: ["/PaidADs/0.png","/Com/1.ogv","/Com/GP.png"]
• arr2: ["/PaidADs/0.png","/Com/2.ogv","/Com/Ge.png"]
• arr3: ["/PaidADs/0.png","/Com/3.ogv","/Com/Gg.png"]
• ...
• 多个数组 ## 怎么才能把"/PaidADs/0.png"提取出来

Answer 1

arr1.filter( x => new Set(arr2).has(x)).filter( x => new Set(arr3).has(x));