方法：

Array.createRandomNum = function (num,max) {        var result = [];        try {            while (num--) {                result.push(Math.ceil(Math.random() * max));            }        } catch (e) {            console.log(e);        }        return result;    } Array.prototype.distinct = function () {        var cur = [], result = [], obj = {};        try {            cur = this;            cur.forEach(t => obj[t] = null);            result = Object.keys(obj);        } catch (e) {            console.log(e);        }        return result;    }

调用：

var arr = Array.createRandomNum(100000, 10000);        console.log(arr);        var arr1 = arr.distinct();        console.log(arr1);        console.timeEnd("计时器结束");