# num
Convert a value to a number.
## Syntax
[num $value]
`$value` may be a string, bool, or number.
## Examples
[num "42"] # 42 [num "3.14"] # 3.14 [num true] # 1 [num false] # 0 [num "abc"] # nil (parse failed)
## Returns
Number parsed from the value, or nil if it cannot be converted.
## See Also
`int`, `keyword`, `str`, `type`