Js array containing objects in the deduplication method js array object deduplication

1. Reference: https: //www.cnblogs.com/le220/p/9130656.html

 The method of the js array object deduplication      method two

 

2. pure array deduplication: https: //blog.csdn.net/jiangwei1994/article/details/82992985

var arr = [1,1,2,9,6,9,6,3,1,4,5];
arr = Array.from(new Set(arr))
console.log(arr)