SOURCE

const objData = {
    name:'张三',
    age:'23',
    job:'学生',
    idCard:'1XX3343567'
}

let arr = [1,1,"1","1",true,true,"true",{},{},"{}",null,null,undefined,undefined]
// 方法2
let uniqueTwo = arr => {
    let map = new Map(); //或者用空对象 let obj = {} 利用对象属性不能重复得特性
    let brr = []
    arr.forEach( item => {
        if(!map.has(item)) { //如果是对象得话就判断 !obj[item]
            map.set(item,true) //如果是对象得话就obj[item] =true 其他一样
            brr.push(item)
        }
    })
    return brr
}
console.log(uniqueTwo(arr))