how to get date comparison working? - angularjs

Question

I fail to see why this date comparison is not working in js. I have linked a json file with items that have dateproperties to the nggrid. This is what the refresh function looks like:
$scope.refresh = function() {
$http.get('data.jon').success(function(data) {
//$scope.myData = data;
//$scope.myData.splice(0,1);
var i=0;
data.forEach(
function(item) {
i++;
console.log(i);
var itemDate = new Date(item.date).valueOf();
var compareDate = new Date('1/1/2025').valueOf();
if (itemDate < compareDate) {
debugger;
console.log(itemDate);
console.log(compareDate);
$scope.myData.push(item);
}
});
});
};
The data for the grid looks like this:
[
{
"name": "Moroni",
"age": 50,
"date":"1/1/2015"
},
{
"name": "Tiancum",
"age": 43,
"date":"1/1/2016"
},
{
"name": "Jacob",
"age": 27,
"date":"1/1/2017"
},
{
"name": "Nephi",
"age": 29,
"date":"1/1/2018"
},
{
"name": "Enos",
"age": 34,
"date":"1/1/2019"
}
]
I would expect to see 5 dates to be displayed in my table because they all satisfy the request?
Here is a plunker:http://plnkr.co/edit/e4ua6k?p=preview

Answer 1

Why don't you do this instead:
var itemDate = new Date(item.date);
var compareDate = new Date('1/1/2025');
if (itemDate < compareDate) {
.....
}

Answer 2

Why not compare timestamp directly instead like below :-
var itemDate = new Date(item.date).getTime();
var compareDate = new Date('1/1/2025').getTime();
if (itemDate < compareDate) {
}