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-# Function
-
-The `Napi::Function` class provides a set of methods for creating a function object in
-native code that can later be called from JavaScript. The created function is not
-automatically visible from JavaScript. Instead it needs to be part of the add-on's
-module exports or be returned by one of the module's exported functions.
-
-In addition the `Napi::Function` class also provides methods that can be used to call
-functions that were created in JavaScript and passed to the native add-on.
-
-The `Napi::Function` class inherits its behavior from the `Napi::Object` class (for more info
-see: [`Napi::Object`](object.md)).
-
-## Example
-
-```cpp
-#include <napi.h>
-
-using namespace Napi;
-
-Value Fn(const CallbackInfo& info) {
- Env env = info.Env();
- // ...
- return String::New(env, "Hello World");
-}
-
-Object Init(Env env, Object exports) {
- exports.Set(String::New(env, "fn"), Function::New(env, Fn));
-}
-
-NODE_API_MODULE(NODE_GYP_MODULE_NAME, Init)
-```
-
-The above code can be used from JavaScript as follows:
-
-```js
-const addon = require('./addon');
-addon.fn();
-```
-
-With the `Napi::Function` class it is possible to call a JavaScript function object
-from a native add-on with two different methods: `Call` and `MakeCallback`.
-The API of these two methods is very similar, but they are used in different
-contexts. The `MakeCallback` method is used to call from native code back into
-JavaScript after returning from an [asynchronous operation](async_operations.md)
-and in general in situations which don't have an existing JavaScript function on
-the stack. The `Call` method is used when there is already a JavaScript function
-on the stack (for example when running a native method called from JavaScript).
-
-## Methods
-
-### Constructor
-
-Creates a new empty instance of `Napi::Function`.
-
-```cpp
-Napi::Function::Function();
-```
-
-### Constructor
-
-Creates a new instance of the `Napi::Function` object.
-
-```cpp
-Napi::Function::Function(napi_env env, napi_value value);
-```
-
-- `[in] env`: The `napi_env` environment in which to construct the `Napi::Function` object.
-- `[in] value`: The `napi_value` which is a handle for a JavaScript function.
-
-Returns a non-empty `Napi::Function` instance.
-
-### New
-
-Creates an instance of a `Napi::Function` object.
-
-```cpp
-template <typename Callable>
-static Napi::Function Napi::Function::New(napi_env env, Callable cb, const char* utf8name = nullptr, void* data = nullptr);
-```
-
-- `[in] env`: The `napi_env` environment in which to construct the `Napi::Function` object.
-- `[in] cb`: Object that implements `Callable`.
-- `[in] utf8name`: Null-terminated string to be used as the name of the function.
-- `[in] data`: User-provided data context. This will be passed back into the
-function when invoked later.
-
-Returns an instance of a `Napi::Function` object.
-
-### New
-
-```cpp
-template <typename Callable>
-static Napi::Function Napi::Function::New(napi_env env, Callable cb, const std::string& utf8name, void* data = nullptr);
-```
-
-- `[in] env`: The `napi_env` environment in which to construct the `Napi::Function` object.
-- `[in] cb`: Object that implements `Callable`.
-- `[in] utf8name`: String to be used as the name of the function.
-- `[in] data`: User-provided data context. This will be passed back into the
-function when invoked later.
-
-Returns an instance of a `Napi::Function` object.
-
-### New
-
-Creates a new JavaScript value from one that represents the constructor for the
-object.
-
-```cpp
-Napi::Object Napi::Function::New(const std::initializer_list<napi_value>& args) const;
-```
-
-- `[in] args`: Initializer list of JavaScript values as `napi_value` representing
-the arguments of the contructor function.
-
-Returns a new JavaScript object.
-
-### New
-
-Creates a new JavaScript value from one that represents the constructor for the
-object.
-
-```cpp
-Napi::Object Napi::Function::New(const std::vector<napi_value>& args) const;
-```
-
-- `[in] args`: Vector of JavaScript values as `napi_value` representing the
-arguments of the constructor function.
-
-Returns a new JavaScript object.
-
-### New
-
-Creates a new JavaScript value from one that represents the constructor for the
-object.
-
-```cpp
-Napi::Object Napi::Function::New(size_t argc, const napi_value* args) const;
-```
-
-- `[in] argc`: The number of the arguments passed to the contructor function.
-- `[in] args`: Array of JavaScript values as `napi_value` representing the
-arguments of the constructor function.
-
-Returns a new JavaScript object.
-
-### Call
-
-Calls a Javascript function from a native add-on.
-
-```cpp
-Napi::Value Napi::Function::Call(const std::initializer_list<napi_value>& args) const;
-```
-
-- `[in] args`: Initializer list of JavaScript values as `napi_value` representing
-the arguments of the function.
-
-Returns a `Napi::Value` representing the JavaScript value returned by the function.
-
-### Call
-
-Calls a JavaScript function from a native add-on.
-
-```cpp
-Napi::Value Napi::Function::Call(const std::vector<napi_value>& args) const;
-```
-
-- `[in] args`: Vector of JavaScript values as `napi_value` representing the
-arguments of the function.
-
-Returns a `Napi::Value` representing the JavaScript value returned by the function.
-
-### Call
-
-Calls a Javascript function from a native add-on.
-
-```cpp
-Napi::Value Napi::Function::Call(size_t argc, const napi_value* args) const;
-```
-
-- `[in] argc`: The number of the arguments passed to the function.
-- `[in] args`: Array of JavaScript values as `napi_value` representing the
-arguments of the function.
-
-Returns a `Napi::Value` representing the JavaScript value returned by the function.
-
-### Call
-
-Calls a Javascript function from a native add-on.
-
-```cpp
-Napi::Value Napi::Function::Call(napi_value recv, const std::initializer_list<napi_value>& args) const;
-```
-
-- `[in] recv`: The `this` object passed to the called function.
-- `[in] args`: Initializer list of JavaScript values as `napi_value` representing
-the arguments of the function.
-
-Returns a `Napi::Value` representing the JavaScript value returned by the function.
-
-### Call
-
-Calls a Javascript function from a native add-on.
-
-```cpp
-Napi::Value Napi::Function::Call(napi_value recv, const std::vector<napi_value>& args) const;
-```
-
-- `[in] recv`: The `this` object passed to the called function.
-- `[in] args`: Vector of JavaScript values as `napi_value` representing the
-arguments of the function.
-
-Returns a `Napi::Value` representing the JavaScript value returned by the function.
-
-### Call
-
-Calls a Javascript function from a native add-on.
-
-```cpp
-Napi::Value Napi::Function::Call(napi_value recv, size_t argc, const napi_value* args) const;
-```
-
-- `[in] recv`: The `this` object passed to the called function.
-- `[in] argc`: The number of the arguments passed to the function.
-- `[in] args`: Array of JavaScript values as `napi_value` representing the
-arguments of the function.
-
-Returns a `Napi::Value` representing the JavaScript value returned by the function.
-
-### MakeCallback
-
-Calls a Javascript function from a native add-on after an asynchronous operation.
-
-```cpp
-Napi::Value Napi::Function::MakeCallback(napi_value recv, const std::initializer_list<napi_value>& args, napi_async_context context = nullptr) const;
-```
-
-- `[in] recv`: The `this` object passed to the called function.
-- `[in] args`: Initializer list of JavaScript values as `napi_value` representing
-the arguments of the function.
-- `[in] context`: Context for the async operation that is invoking the callback.
-This should normally be a value previously obtained from [Napi::AsyncContext](async_context.md).
-However `nullptr` is also allowed, which indicates the current async context
-(if any) is to be used for the callback.
-
-Returns a `Napi::Value` representing the JavaScript value returned by the function.
-
-### MakeCallback
-
-Calls a Javascript function from a native add-on after an asynchronous operation.
-
-```cpp
-Napi::Value Napi::Function::MakeCallback(napi_value recv, const std::vector<napi_value>& args, napi_async_context context = nullptr) const;
-```
-
-- `[in] recv`: The `this` object passed to the called function.
-- `[in] args`: List of JavaScript values as `napi_value` representing the
-arguments of the function.
-- `[in] context`: Context for the async operation that is invoking the callback.
-This should normally be a value previously obtained from [Napi::AsyncContext](async_context.md).
-However `nullptr` is also allowed, which indicates the current async context
-(if any) is to be used for the callback.
-
-Returns a `Napi::Value` representing the JavaScript value returned by the function.
-
-### MakeCallback
-
-Calls a Javascript function from a native add-on after an asynchronous operation.
-
-```cpp
-Napi::Value Napi::Function::MakeCallback(napi_value recv, size_t argc, const napi_value* args, napi_async_context context = nullptr) const;
-```
-
-- `[in] recv`: The `this` object passed to the called function.
-- `[in] argc`: The number of the arguments passed to the function.
-- `[in] args`: Array of JavaScript values as `napi_value` representing the
-arguments of the function.
-- `[in] context`: Context for the async operation that is invoking the callback.
-This should normally be a value previously obtained from [Napi::AsyncContext](async_context.md).
-However `nullptr` is also allowed, which indicates the current async context
-(if any) is to be used for the callback.
-
-Returns a `Napi::Value` representing the JavaScript value returned by the function.
-
-## Operator
-
-```cpp
-Napi::Value Napi::Function::operator ()(const std::initializer_list<napi_value>& args) const;
-```
-
-- `[in] args`: Initializer list of JavaScript values as `napi_value`.
-
-Returns a `Napi::Value` representing the JavaScript value returned by the function.