Enhance RTCDataChannel send method to accept multiple data types: string, Blob, ArrayBuffer, and ArrayBufferView

baselines/dom.generated.d.ts

@@ -19799,7 +19799,7 @@ interface RTCDataChannel extends EventTarget {
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/close) */
     close(): void;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/send) */
-    send(data: string): void;
+    send(data: string | Blob | ArrayBuffer | ArrayBufferView): void;
     send(data: Blob): void;
     send(data: ArrayBuffer): void;
     send(data: ArrayBufferView<ArrayBuffer>): void;

baselines/ts5.5/dom.generated.d.ts

@@ -19779,7 +19779,7 @@ interface RTCDataChannel extends EventTarget {
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/close) */
     close(): void;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/send) */
-    send(data: string): void;
+    send(data: string | Blob | ArrayBuffer | ArrayBufferView): void;
     send(data: Blob): void;
     send(data: ArrayBuffer): void;
     send(data: ArrayBufferView): void;

baselines/ts5.5/webworker.generated.d.ts

@@ -5564,7 +5564,7 @@ interface RTCDataChannel extends EventTarget {
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/close) */
     close(): void;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/send) */
-    send(data: string): void;
+    send(data: string | Blob | ArrayBuffer | ArrayBufferView): void;
     send(data: Blob): void;
     send(data: ArrayBuffer): void;
     send(data: ArrayBufferView): void;

baselines/ts5.6/dom.generated.d.ts

@@ -19799,7 +19799,7 @@ interface RTCDataChannel extends EventTarget {
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/close) */
     close(): void;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/send) */
-    send(data: string): void;
+    send(data: string | Blob | ArrayBuffer | ArrayBufferView): void;
     send(data: Blob): void;
     send(data: ArrayBuffer): void;
     send(data: ArrayBufferView): void;

baselines/ts5.6/webworker.generated.d.ts

@@ -5564,7 +5564,7 @@ interface RTCDataChannel extends EventTarget {
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/close) */
     close(): void;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/send) */
-    send(data: string): void;
+    send(data: string | Blob | ArrayBuffer | ArrayBufferView): void;
     send(data: Blob): void;
     send(data: ArrayBuffer): void;
     send(data: ArrayBufferView): void;

baselines/webworker.generated.d.ts

@@ -5564,7 +5564,7 @@ interface RTCDataChannel extends EventTarget {
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/close) */
     close(): void;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/send) */
-    send(data: string): void;
+    send(data: string | Blob | ArrayBuffer | ArrayBufferView): void;
     send(data: Blob): void;
     send(data: ArrayBuffer): void;
     send(data: ArrayBufferView<ArrayBuffer>): void;

inputfiles/overridingTypes.jsonc

@@ -2325,6 +2325,22 @@
                             "type": "MessageEvent"
                         }
                     ]
+                },
+                "methods": {
+                    "method": {
+                        "send": {
+                            "signature": {
+                                "0": {
+                                    "param": [
+                                        {
+                                            "name": "data",
+                                            "overrideType": "string | Blob | ArrayBuffer | ArrayBufferView"
+                                        }
+                                    ]
+                                }
+                            }
+                        }
+                    }
                 }
             },
             "RTCIceCandidatePair": {

unittests/files/RTCDataChannel.ts

@@ -0,0 +1,38 @@
+function sendIt(
+  peerConnection: RTCPeerConnection,
+  data: string | Blob | ArrayBuffer | ArrayBufferView,
+): void {
+    const dc = peerConnection.createDataChannel('');
+    dc.onopen = () => {
+        dc.send(data);
+    };
+
+    dc.onerror = (e) => {
+        console.error("DataChannel error:", e);
+    };
+}
+
+
+const peerConnection = new RTCPeerConnection();
+
+peerConnection.ondatachannel = (event) => {
+    const channel = event.channel;
+    channel.onmessage = (e) => {
+        console.log("Received message:", e.data);
+    };
+};
+
+// Call `sendIt` with a string
+sendIt(peerConnection, "Hello world!");
+
+// Call `sendIt` with a Blob
+const blob = new Blob(["Blob message!"], { type: "text/plain" });
+sendIt(peerConnection, blob);
+
+// Call `sendIt` with an ArrayBuffer
+const arrayBuffer = new TextEncoder().encode("ArrayBuffer message!").buffer;
+sendIt(peerConnection, arrayBuffer);
+
+// Call `sendIt` with an ArrayBufferView
+const view = new Uint8Array([72, 105, 33]); // "Hi!"
+sendIt(peerConnection, view);