chore: bump prettier to version 3

This change is necessary to be able to write "import type { ... }".

.github/workflows/ci.yml

@@ -17,7 +17,7 @@ jobs:
     strategy:
       matrix:
         node-version:
-          - 10
+          - 14
           - 20
 
     steps:

lib/commons.ts

@@ -8,7 +8,7 @@ PACKET_TYPES["upgrade"] = "5";
 PACKET_TYPES["noop"] = "6";
 
 const PACKET_TYPES_REVERSE = Object.create(null);
-Object.keys(PACKET_TYPES).forEach(key => {
+Object.keys(PACKET_TYPES).forEach((key) => {
   PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;
 });
 

lib/decodePacket.browser.ts

@@ -3,27 +3,27 @@ import {
   PACKET_TYPES_REVERSE,
   Packet,
   BinaryType,
-  RawData
+  RawData,
 } from "./commons.js";
 import { decode } from "./contrib/base64-arraybuffer.js";
 
 const withNativeArrayBuffer = typeof ArrayBuffer === "function";
 
 export const decodePacket = (
   encodedPacket: RawData,
-  binaryType?: BinaryType
+  binaryType?: BinaryType,
 ): Packet => {
   if (typeof encodedPacket !== "string") {
     return {
       type: "message",
-      data: mapBinary(encodedPacket, binaryType)
+      data: mapBinary(encodedPacket, binaryType),
     };
   }
   const type = encodedPacket.charAt(0);
   if (type === "b") {
     return {
       type: "message",
-      data: decodeBase64Packet(encodedPacket.substring(1), binaryType)
+      data: decodeBase64Packet(encodedPacket.substring(1), binaryType),
     };
   }
   const packetType = PACKET_TYPES_REVERSE[type];
@@ -33,10 +33,10 @@ export const decodePacket = (
   return encodedPacket.length > 1
     ? {
         type: PACKET_TYPES_REVERSE[type],
-        data: encodedPacket.substring(1)
+        data: encodedPacket.substring(1),
       }
     : {
-        type: PACKET_TYPES_REVERSE[type]
+        type: PACKET_TYPES_REVERSE[type],
       };
 };
 

lib/decodePacket.ts

@@ -3,25 +3,25 @@ import {
   PACKET_TYPES_REVERSE,
   Packet,
   BinaryType,
-  RawData
+  RawData,
 } from "./commons.js";
 
 export const decodePacket = (
   encodedPacket: RawData,
-  binaryType?: BinaryType
+  binaryType?: BinaryType,
 ): Packet => {
   if (typeof encodedPacket !== "string") {
     return {
       type: "message",
-      data: mapBinary(encodedPacket, binaryType)
+      data: mapBinary(encodedPacket, binaryType),
     };
   }
   const type = encodedPacket.charAt(0);
   if (type === "b") {
     const buffer = Buffer.from(encodedPacket.substring(1), "base64");
     return {
       type: "message",
-      data: mapBinary(buffer, binaryType)
+      data: mapBinary(buffer, binaryType),
     };
   }
   if (!PACKET_TYPES_REVERSE[type]) {
@@ -30,10 +30,10 @@ export const decodePacket = (
   return encodedPacket.length > 1
     ? {
         type: PACKET_TYPES_REVERSE[type],
-        data: encodedPacket.substring(1)
+        data: encodedPacket.substring(1),
       }
     : {
-        type: PACKET_TYPES_REVERSE[type]
+        type: PACKET_TYPES_REVERSE[type],
       };
 };
 
@@ -47,7 +47,7 @@ const mapBinary = (data: RawData, binaryType?: BinaryType) => {
         // from HTTP long-polling
         return data.buffer.slice(
           data.byteOffset,
-          data.byteOffset + data.byteLength
+          data.byteOffset + data.byteLength,
         );
       } else {
         // from WebTransport (Uint8Array)

lib/encodePacket.browser.ts

@@ -7,7 +7,7 @@ const withNativeBlob =
 const withNativeArrayBuffer = typeof ArrayBuffer === "function";
 
 // ArrayBuffer.isView method is not defined in IE10
-const isView = obj => {
+const isView = (obj) => {
   return typeof ArrayBuffer.isView === "function"
     ? ArrayBuffer.isView(obj)
     : obj && obj.buffer instanceof ArrayBuffer;
@@ -16,7 +16,7 @@ const isView = obj => {
 const encodePacket = (
   { type, data }: Packet,
   supportsBinary: boolean,
-  callback: (encodedPacket: RawData) => void
+  callback: (encodedPacket: RawData) => void,
 ) => {
   if (withNativeBlob && data instanceof Blob) {
     if (supportsBinary) {
@@ -40,10 +40,10 @@ const encodePacket = (
 
 const encodeBlobAsBase64 = (
   data: Blob,
-  callback: (encodedPacket: RawData) => void
+  callback: (encodedPacket: RawData) => void,
 ) => {
   const fileReader = new FileReader();
-  fileReader.onload = function() {
+  fileReader.onload = function () {
     const content = (fileReader.result as string).split(",")[1];
     callback("b" + (content || ""));
   };
@@ -64,20 +64,17 @@ let TEXT_ENCODER;
 
 export function encodePacketToBinary(
   packet: Packet,
-  callback: (encodedPacket: RawData) => void
+  callback: (encodedPacket: RawData) => void,
 ) {
   if (withNativeBlob && packet.data instanceof Blob) {
-    return packet.data
-      .arrayBuffer()
-      .then(toArray)
-      .then(callback);
+    return packet.data.arrayBuffer().then(toArray).then(callback);
   } else if (
     withNativeArrayBuffer &&
     (packet.data instanceof ArrayBuffer || isView(packet.data))
   ) {
     return callback(toArray(packet.data));
   }
-  encodePacket(packet, false, encoded => {
+  encodePacket(packet, false, (encoded) => {
     if (!TEXT_ENCODER) {
       TEXT_ENCODER = new TextEncoder();
     }

lib/encodePacket.ts

@@ -3,11 +3,11 @@ import { PACKET_TYPES, Packet, RawData } from "./commons.js";
 export const encodePacket = (
   { type, data }: Packet,
   supportsBinary: boolean,
-  callback: (encodedPacket: RawData) => void
+  callback: (encodedPacket: RawData) => void,
 ) => {
   if (data instanceof ArrayBuffer || ArrayBuffer.isView(data)) {
     return callback(
-      supportsBinary ? data : "b" + toBuffer(data, true).toString("base64")
+      supportsBinary ? data : "b" + toBuffer(data, true).toString("base64"),
     );
   }
   // plain string
@@ -31,12 +31,12 @@ let TEXT_ENCODER;
 
 export function encodePacketToBinary(
   packet: Packet,
-  callback: (encodedPacket: RawData) => void
+  callback: (encodedPacket: RawData) => void,
 ) {
   if (packet.data instanceof ArrayBuffer || ArrayBuffer.isView(packet.data)) {
     return callback(toBuffer(packet.data, false));
   }
-  encodePacket(packet, true, encoded => {
+  encodePacket(packet, true, (encoded) => {
     if (!TEXT_ENCODER) {
       // lazily created for compatibility with Node.js 10
       TEXT_ENCODER = new TextEncoder();

lib/index.ts

@@ -5,14 +5,14 @@ import {
   PacketType,
   RawData,
   BinaryType,
-  ERROR_PACKET
+  ERROR_PACKET,
 } from "./commons.js";
 
 const SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text
 
 const encodePayload = (
   packets: Packet[],
-  callback: (encodedPayload: string) => void
+  callback: (encodedPayload: string) => void,
 ) => {
   // some packets may be added to the array while encoding, so the initial length must be saved
   const length = packets.length;
@@ -21,7 +21,7 @@ const encodePayload = (
 
   packets.forEach((packet, i) => {
     // force base64 encoding for binary packets
-    encodePacket(packet, false, encodedPacket => {
+    encodePacket(packet, false, (encodedPacket) => {
       encodedPackets[i] = encodedPacket;
       if (++count === length) {
         callback(encodedPackets.join(SEPARATOR));
@@ -32,7 +32,7 @@ const encodePayload = (
 
 const decodePayload = (
   encodedPayload: string,
-  binaryType?: BinaryType
+  binaryType?: BinaryType,
 ): Packet[] => {
   const encodedPackets = encodedPayload.split(SEPARATOR);
   const packets = [];
@@ -49,7 +49,7 @@ const decodePayload = (
 export function createPacketEncoderStream() {
   return new TransformStream({
     transform(packet: Packet, controller) {
-      encodePacketToBinary(packet, encodedPacket => {
+      encodePacketToBinary(packet, (encodedPacket) => {
         const payloadLength = encodedPacket.length;
         let header;
         // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length
@@ -74,7 +74,7 @@ export function createPacketEncoderStream() {
         controller.enqueue(header);
         controller.enqueue(encodedPacket);
       });
-    }
+    },
   });
 }
 
@@ -107,12 +107,12 @@ const enum State {
   READ_HEADER,
   READ_EXTENDED_LENGTH_16,
   READ_EXTENDED_LENGTH_64,
-  READ_PAYLOAD
+  READ_PAYLOAD,
 }
 
 export function createPacketDecoderStream(
   maxPayload: number,
-  binaryType: BinaryType
+  binaryType: BinaryType,
 ) {
   if (!TEXT_DECODER) {
     TEXT_DECODER = new TextDecoder();
@@ -148,7 +148,7 @@ export function createPacketDecoderStream(
           expectedLength = new DataView(
             headerArray.buffer,
             headerArray.byteOffset,
-            headerArray.length
+            headerArray.length,
           ).getUint16(0);
           state = State.READ_PAYLOAD;
         } else if (state === State.READ_EXTENDED_LENGTH_64) {
@@ -160,7 +160,7 @@ export function createPacketDecoderStream(
           const view = new DataView(
             headerArray.buffer,
             headerArray.byteOffset,
-            headerArray.length
+            headerArray.length,
           );
 
           const n = view.getUint32(0);
@@ -181,8 +181,8 @@ export function createPacketDecoderStream(
           controller.enqueue(
             decodePacket(
               isBinary ? data : TEXT_DECODER.decode(data),
-              binaryType
-            )
+              binaryType,
+            ),
           );
           state = State.READ_HEADER;
         }
@@ -192,7 +192,7 @@ export function createPacketDecoderStream(
           break;
         }
       }
-    }
+    },
   });
 }
 
@@ -205,5 +205,5 @@ export {
   Packet,
   PacketType,
   RawData,
-  BinaryType
+  BinaryType,
 };

package.json

@@ -21,7 +21,7 @@
     "expect.js": "0.3.1",
     "mocha": "^5.2.0",
     "nyc": "~15.0.1",
-    "prettier": "^1.19.1",
+    "prettier": "^3.2.5",
     "rimraf": "^3.0.2",
     "socket.io-browsers": "^1.0.4",
     "ts-node": "^10.2.1",