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# TypedArray
Class `Napi::TypedArray` inherits from class [`Napi::Object`][].
The `Napi::TypedArray` class corresponds to the
[JavaScript `TypedArray`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray)
class.
## Methods
### Constructor
Initializes an empty instance of the `Napi::TypedArray` class.
```cpp
Napi::TypedArray::TypedArray();
```
### Constructor
Initializes a wrapper instance of an existing `Napi::TypedArray` instance.
```cpp
Napi::TypedArray::TypedArray(napi_env env, napi_value value);
```
- `[in] env`: The environment in which to create the `Napi::TypedArray` instance.
- `[in] value`: The `Napi::TypedArray` reference to wrap.
### TypedArrayType
```cpp
napi_typedarray_type Napi::TypedArray::TypedArrayType() const;
```
Returns the type of this instance.
### ArrayBuffer
```cpp
Napi::ArrayBuffer Napi::TypedArray::ArrayBuffer() const;
```
Returns the backing array buffer.
### ElementSize
```cpp
uint8_t Napi::TypedArray::ElementSize() const;
```
Returns the size of one element, in bytes.
### ElementLength
```cpp
size_t Napi::TypedArray::ElementLength() const;
```
Returns the number of elements.
### ByteOffset
```cpp
size_t Napi::TypedArray::ByteOffset() const;
```
Returns the offset into the `Napi::ArrayBuffer` where the array starts, in bytes.
### ByteLength
```cpp
size_t Napi::TypedArray::ByteLength() const;
```
Returns the length of the array, in bytes.
[`Napi::Object`]: ./object.md
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