How to print array data in alert

You need to create an array and then push all the values to it, instead you are resetting it in the loop

var element = $('input');
var p = element.map(function () {
    return this.value
}).get();
alert(JSON.stringify(p));//or alert(p);

changing your code will be

var element = $('input');
var p = [];
for (var i = 0; i < element.length; i++) {
    p.push($(element).eq(i).val());
}
alert(JSON.stringify(p));//or alert(p)

Use javascript toString() function to get result

var array = ["a","b","c"];

solution:

alert(array.toString());

In JavaScript you could just

for(i=0; i<p.length; ++i){
    alert(p[i]);
}

so if p is an array containing ["one","two","three"] your browser will alert "one", "two" and then "three" in the loop.

To display array values properly try this :

saveData: function()
    {
        var p=new Array();
        var element = $('input');
        for(var i=0;i<element.length;i++)
        {
            //alert($(element[i]).val());
            p[0] = $(element[i]).val();
        }
        alert(p.join("\n"));

    },

Use javascript forEach() function to get result

var array = ["a","b","c"]; 

solution:

array.forEach(function(data){alert(data)});

You can use join().

It converts each array element into a string. It acts much like toString(), moreover you can determine the separator.

var arr = ["HTML","CSS","JS"]; 
...
alert(arr.join(' - '));