JS set方法的使用问题

Question

我怎么取到对应的值以及长度呢？

var set = new Set([1, 2, 3, 4, 4,4,4,4,2,2,2]);
         console.log(set)

Answer 1

Questions about using the JS set method - Q&A on the PHP Chinese website - Questions about using the JS set method - Q&A on the PHP Chinese website

Take a look around and learn.

Answer 2

length: set.size;get value: let origin = Array.from(set);