JavaScript math round() method

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The JavaScript math round() method is used to get the closest integer value of a number.
Syntax:

Math.round(n)

Parameters
n: It represents the number whose closest integer value has to be got.

Returns
Closest integer value of a number.

Example:

<!DOCTYPE html>
<html>
<body>
<script>
document.writeln(Math.round(45.7864));
</script>
</body>
</html>