您可以使用 Array.prototype.every().(A需要对IE＆LT填充工具; 9等老的浏览器的。）

  VAR数组1 = [4,8,9,10];
VAR数组2 = [4,8,9,10];变种is_same =（array1.length == array2.length）及＆放大器; array1.every（函数（元素，索引）{
    归元===数组2 [指数]
}）;
 

的工作演示。

I want position of the array is to be also same and value also same.

var array1 = [4,8,9,10];
var array2 = [4,8,9,10];

I tried like this

var array3 = array1 === array2   // returns false

You could use Array.prototype.every().(A polyfill is needed for IE < 9 and other old browsers.)

var array1 = [4,8,9,10];
var array2 = [4,8,9,10];

var is_same = (array1.length == array2.length) && array1.every(function(element, index) {
    return element === array2[index]; 
});

THE WORKING DEMO.