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Map.size property in JavaScript
The size property of Map object accepts a JSON string, and constructs an object based on the given text and, returns it.
Syntax
Its Syntax is as follows
mapVar.size
Example
<html>
<head>
<title>JavaScript Example</title>
</head>
<body>
<script type="text/javascript">
var mapVar = new Map();
mapVar.set('1', 'Java');
mapVar.set('2', 'JavaFX');
mapVar.set('3', 'HBase');
mapVar.set('4', 'Neo4j');
document.write("Size of the map object: "+mapVar.size);
</script>
</body>
</html>
Output
Size of the map object: 4
Updated on: 2020-06-25T12:16:07+05:30
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