# Buffer
Class `Napi::Buffer` inherits from class [`Napi::Uint8Array`][].
The `Napi::Buffer` class creates a projection of raw data that can be consumed by
script.
## Methods
### New
Allocates a new `Napi::Buffer` object with a given length.
```cpp
static Napi::Buffer<T> Napi::Buffer::New(napi_env env, size_t length);
```
- `[in] env`: The environment in which to create the `Napi::Buffer` object.
- `[in] length`: The number of `T` elements to allocate.
Returns a new `Napi::Buffer` object.
### New
Wraps the provided external data into a new `Napi::Buffer` object.
The `Napi::Buffer` object does not assume ownership for the data and expects it to be
valid for the lifetime of the object. Since the `Napi::Buffer` is subject to garbage
collection this overload is only suitable for data which is static and never
needs to be freed.
```cpp
static Napi::Buffer<T> Napi::Buffer::New(napi_env env, T* data, size_t length);
```
- `[in] env`: The environment in which to create the `Napi::Buffer` object.
- `[in] data`: The pointer to the external data to expose.
- `[in] length`: The number of `T` elements in the external data.
Returns a new `Napi::Buffer` object.
### New
Wraps the provided external data into a new `Napi::Buffer` object.
The `Napi::Buffer` object does not assume ownership for the data and expects it
to be valid for the lifetime of the object. The data can only be freed once the
`finalizeCallback` is invoked to indicate that the `Napi::Buffer` has been released.
```cpp
template <typename Finalizer>
