原生js数组去重

直接上代码

var arr = [2, 3, 4, 4, 5, 2, 3, 6],
        arr2 = [];
    for (var i = 0; i < arr.length; i++) {
        if (arr2.indexOf(arr[i])<0) {
            arr2.push(arr[i]);
        }
    }
    console.log(arr2);