napigetvaluedouble
napigetvaluedouble is a function described in a hypothetical Node-API style interface used for native extensions. It is designed to extract a double-precision floating-point value from a value object that represents a JavaScript number.
The function typically has a three-parameter form: an environment handle, a value representing a JavaScript value,
Behavior and error handling are guided by type checks and value constraints. If the input value is
Example usage in considered code would resemble obtaining a double from a value and checking the returned
Related functions in the same family often include analogous value getters for integers or other numeric types,