napi coerce to number

napi_status napi_coerce_to_number(napi_env env,
                                  napi_value value,
                                  napi_value* result)

• [in] env: The environment that the API is invoked under.
• [in] value: The JavaScript value to coerce.
• [out] result: napi_value representing the coerced JavaScript Number.

Returns napi_ok if the API succeeded.

This API implements the abstract operation ToNumber() as defined in [Section 7.1.3][] of the ECMAScript Language Specification. This API can be re-entrant if getters are defined on the passed-in Object.