XuRan-Luo

let arr = [1,1,'true','true',true,true,15,15,false,false, undefined,undefined, null,null, NaN, NaN,'NaN','NaN', 0, 0, 'a', 'a',{},{}]; let obj = {} let newArr = [] for(let i = 0; i < arr.length; i++) { if(!obj[arr[i]]){...