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>