Replace old docs with new docs repo (#24201)

docs/guides/binary/arraybuffer-to-array.mdx

@@ -0,0 +1,29 @@
+---
+title: Convert an ArrayBuffer to an array of numbers
+sidebarTitle: "ArrayBuffer to Array"
+mode: center
+---
+
+To retrieve the contents of an `ArrayBuffer` as an array of numbers, create a [`Uint8Array`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array) over of the buffer. and use the [`Array.from()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/from) method to convert it to an array.
+
+```ts
+const buf = new ArrayBuffer(64);
+const arr = new Uint8Array(buf);
+arr.length; // 64
+arr[0]; // 0 (instantiated with all zeros)
+```
+
+---
+
+The `Uint8Array` class supports array indexing and iteration. However if you wish to convert the instance to a regular `Array`, use `Array.from()`. (This will likely be slower than using the `Uint8Array` directly.)
+
+```ts
+const buf = new ArrayBuffer(64);
+const uintArr = new Uint8Array(buf);
+const regularArr = Array.from(uintArr);
+// number[]
+```
+
+---
+
+See [Docs > API > Binary Data](https://bun.com/docs/api/binary-data#conversion) for complete documentation on manipulating binary data with Bun.