2024-06-21

Writerside/topics/Web-Socket.md

@@ -0,0 +1,35 @@
+# 웹소켓
+
+```javascript
+let websocket = new WebSocket("wss://echo.websocket.org/");
+websocket.onopen = function (event) {
+    websocket.send("Hello");
+};
+
+websocket.onclose = function (event) {
+    console.log(event.code + ": " + event.reason);
+};
+
+websocket.onmessage = function (event) {
+    console.log(event.data);
+};
+
+websocket.onerror = function (event) {
+};
+```
+
+- send()
+
+  서버에 데이터 전송. String, Blob, ArrayBuffer를 보낼 수 있습니다.
+
+- close()
+
+  연결을 닫습니다.
+
+- onopen
+
+- onclose
+
+- onerror
+
+- onmessage