ArrayBuffer object is used to represent a generic, fixed-length raw binary data buffer.
It is an array of bytes, often referred to in other languages as a "byte array".You cannot directly manipulate the contents of an
ArrayBuffer; instead, you create one of the typed array objects or a
DataView object which represents the buffer in a specific format, and use that to read and write the contents of the buffer.
- Creates a new
- The constructor function that is used to create derived objects.
- The read-only size, in bytes, of the
ArrayBuffer. This is established when the array is constructed and cannot be changed.
- Returns a new
ArrayBufferwhose contents are a copy of this
ArrayBuffer's bytes from
begin(inclusive) up to
end(exclusive). If either
endis negative, it refers to an index from the end of the array, as opposed to from the beginning.
In this example, we create a 8-byte buffer with a
Int32Array view referring to the buffer:
const buffer = new ArrayBuffer(8); const view = new Int32Array(buffer);
|ECMAScript Language Specification (ECMAScript)|
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