To print object array in JavaScript, use JSON.stringify() method.
Example
You can try to run the following code to display object array −
<!DOCTYPE html>
<html>
<body>
<pre id="test"></pre>
<script>
var data = [{
date: new Date(2017, 11, 25),
value: 10
}, {
date: new Date(2017, 11, 30),
value: 20
}];
document.getElementById('test').innerHTML = JSON.stringify(data, null, 4);
</script>
</body>
</html>Output
[
{
"date": "2017-12-24T18:30:00.000Z",
"value": 10
},
{
"date": "2017-12-29T18:30:00.000Z",
"value": 20
}
]