You are currently looking at the < v8.2.0 docs (Reason v3.6 syntax edition). You can find the latest API docs here.
(These docs cover all versions between v3 to v8 and are equivalent to the old BuckleScript docs before the rebrand)
Provide bindings to JS typed array ArrayBuffer.
type t = Js_typed_array.array_buffer;
let make: int => t;
Takes length. initializes elements to 0.
let byteLength: t => int;
let slice: (~start: int, ~end_: int, t) => Js_typed_array.array_buffer;
let sliceFrom: (int, t) => Js_typed_array.array_buffer;