added support for DataView

README.md

@@ -31,18 +31,23 @@ const url = context.toDataURL('image/jpeg');
 const arrayBuffer = await toab(url);
 ```
 
+# convert data view to array buffer
+```javascript
+const arrayBuffer = await toab(dataView)
+```
+
 # convert typed arrays to array buffers
 ```javascript
-const arrayBuffer = await toab(Int8Array)
-const arrayBuffer = await toab(Uint8Array)
-const arrayBuffer = await toab(Int16Array)
-const arrayBuffer = await toab(Uint16Array)
-const arrayBuffer = await toab(Int32Array)
-const arrayBuffer = await toab(Uint32Array)
-const arrayBuffer = await toab(Float32Array)
-const arrayBuffer = await toab(Float64Array)
-const arrayBuffer = await toab(BigInt64Array)
-const arrayBuffer = await toab(BigUint64Array)
+const arrayBuffer = await toab(int8Array)
+const arrayBuffer = await toab(uint8Array)
+const arrayBuffer = await toab(int16Array)
+const arrayBuffer = await toab(uint16Array)
+const arrayBuffer = await toab(int32Array)
+const arrayBuffer = await toab(uint32Array)
+const arrayBuffer = await toab(float32Array)
+const arrayBuffer = await toab(float64Array)
+const arrayBuffer = await toab(bigInt64Array)
+const arrayBuffer = await toab(bigUint64Array)
 ```
 
 # convert text to an array buffer (in UTF-8)

test.js

@@ -42,3 +42,10 @@ test("converting data url in NodeJS", async t => {
   t.is(ab.byteLength, 3979);
   fs.writeFileSync("./data/test.tmp.jpg", Buffer.from(ab));
 });
+
+test("converting dataview", async t => {
+  const buffer = Buffer.alloc(1024);
+  const dataView = new DataView(await toab(buffer, { debug: false }));
+  const ab = await toab(dataView);
+  t.true(ab instanceof ArrayBuffer);
+});

toab.js

@@ -11,6 +11,7 @@ function toab(data, { debug = false } = { debug: false }) {
       data.byteOffset + data.byteLength
     );
   } else if (
+    data instanceof DataView ||
     data instanceof Int8Array ||
     data instanceof Uint8Array ||
     data instanceof Int16Array ||