ArrayBufferView is a helper type representing any of the following JavaScript types:

• Int8Array,
• Uint8Array,
• Uint8ClampedArray,
• Int16Array,
• Uint16Array,
• Int32Array,
• Uint32Array,
• Float32Array,
• Float64Array,
• BigInt64Array,
• BigUint64Array or
• DataView.

All of them, except for DataView, are TypedArray objects.

This is a helper type to simplify the specification; it isn't an interface, and there are no objects implementing it.