JsCreateTypedArray

Creates a Javascript typed array object.

Syntax

STDAPI_(JsErrorCode)
    JsCreateTypedArray(
    _In_ JsTypedArrayType arrayType,
    _In_ JsValueRef baseArray,
    _In_ unsigned int byteOffset,
    _In_ unsigned int elementLength,
    _Out_ JsValueRef *result);

Parameters

• arrayType: The type of the array to create.
• baseArray: The base array of the new array. Use JS_INVALID_REFERENCE if no base array.
• byteOffset: The offset in bytes from the start of baseArray (ArrayBuffer) for result typed array to reference. Only applicable when baseArray is an ArrayBuffer object. Must be 0 otherwise.
• elementLength: The number of elements in the array. Only applicable when creating a new typed array without baseArray (baseArray is JS_INVALID_REFERENCE) or when baseArray is an ArrayBuffer object. Must be 0 otherwise.
• result: The new typed array object.

Return Value

The code JsNoError if the operation succeeded, a failure code otherwise.

Remarks

The baseArray can be an ArrayBuffer, another typed array, or a JavaScript Array. The returned typed array will use the baseArray if it is an ArrayBuffer, or otherwise create and use a copy of the underlying source array. Requires an active script context.