题解 | #数组去重#

Array.prototype.uniq = function () {
    let newArr = [];
    for(var i =0;i<this.length;i++){
        if(newArr.includes(this[i])){
            this.splice(i,1)
            i--;
        }else{
            newArr.push(this[i]);
        }
    }
    return this;
}