# num.parse()

`num.parse(s)` converts the string `s` to a number by parsing it as a base-10 floating point number.

## Returns

* if `s` is a number, returns the number unchanged.
* if `s` is a string, attempts to parse it as a base-10 floating point number. Returns the parsed number on success, or `null` if the string cannot be parsed.
* if `s` is any other type, returns `null`.