Tuesday, March 18, 2014

How to find the length of the Array object

<!DOCTYPE html>
<html>
<body>

<table>
    <tbody id="tbody"></tbody>
</table>

<script>
var obj = [{    "key": "apple",    "value": 1.90},
                {    "key": "berry",    "value": 1.7},
                {    "key": "banana",   "value": 1.5},
                {    "key": "cherry",   "value": 1.2}
];



var a= Object.keys(obj).length;
document.write(a);

</script>

</body>
</html>

 output: 4 i.e here it returns total number of objects inside the array.

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