Class ArrayBuffer

• TopLevel.Object
  • TopLevel.ArrayBuffer

The ArrayBuffer represents a generic array of bytes with fixed length.

To access and manipulate content, use DataView or a typed array.

API Version:

Available from version 21.2.

Note

Property Summary 

Property	Description
byteLength: Number	The number of bytes in the array buffer.

Constructor Summary 

Constructor	Description
ArrayBuffer()	Creates an empty array buffer.
ArrayBuffer(Number)	Creates an array buffer with the given number of bytes.

Method Summary 

Method	Description
static isView(Object)	Returns if the given object is one of the views for an ArrayBuffer, such as a typed array or a DataView.
slice(Number, Number)	Returns a new array buffer with a copy of the data of this buffer.

Methods inherited from class Object 

assign, create, create, defineProperties, defineProperty, entries, freeze, fromEntries, getOwnPropertyDescriptor, getOwnPropertyNames, getOwnPropertySymbols, getPrototypeOf, hasOwnProperty, is, isExtensible, isFrozen, isPrototypeOf, isSealed, keys, preventExtensions, propertyIsEnumerable, seal, setPrototypeOf, toLocaleString, toString, valueOf, values

Property Details 

byteLength 

byteLength: Number

The number of bytes in the array buffer.

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Constructor Details 

ArrayBuffer() 

ArrayBuffer()

Creates an empty array buffer.

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ArrayBuffer(Number) 

ArrayBuffer(byteLength: Number)

Creates an array buffer with the given number of bytes.

Parameters:

• byteLength - The number of bytes.

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Method Details 

isView(Object) 

static isView(object: Object): Boolean

Returns if the given object is one of the views for an ArrayBuffer, such as a typed array or a DataView.

Parameters:

• object - The object to check.

Returns:

• true if the passed object is a view to an array buffer else return false.

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slice(Number, Number) 

slice(begin: Number, end: Number): ArrayBuffer

Returns a new array buffer with a copy of the data of this buffer.

Parameters:

• begin - Optional. The first included element.
• end - Optional. The index of the end. This element is not included.

Returns:

• The new array object.

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