JavaScript Number parseFloat() method

The JavaScript number parseFloat() method is used to convert a string into a floating point number. It will throw NaN exception if specified can not be converted into a float number.

Syntax:

Number.parseFloat(string)

Parameters
string: It represents the string that has to be converted into a floating point number.

Returns
Floating point number.

Example:

<!DOCTYPE html>
<html>
<body>
<script>
var n= 12.334;
document.writeln(Number.parseFloat("50.5FIVE"));
</script>
</body>
</html>