style: Use var in classical for loops

Author: Jan Krems

lib/_inspect.js

@@ -106,6 +106,8 @@ const ProtocolClient = (function setupClient() {
   }
 
   function encodeFrameHybi17(payload) {
+    var i;
+
     const dataLength = payload.length;
 
     let singleByteLength;
@@ -114,7 +116,7 @@ const ProtocolClient = (function setupClient() {
       singleByteLength = kEightBytePayloadLengthField;
       additionalLength = Buffer.alloc(8);
       let remaining = dataLength;
-      for (let i = 0; i < 8; ++i) {
+      for (i = 0; i < 8; ++i) {
         additionalLength[7 - i] = remaining & 0xFF;
         remaining >>= 8;
       }
@@ -135,7 +137,7 @@ const ProtocolClient = (function setupClient() {
 
     const mask = Buffer.alloc(4);
     const masked = Buffer.alloc(dataLength);
-    for (let i = 0; i < dataLength; ++i) {
+    for (i = 0; i < dataLength; ++i) {
       masked[i] = payload[i] ^ mask[i % kMaskingKeyWidthInBytes];
     }
 
@@ -190,7 +192,7 @@ const ProtocolClient = (function setupClient() {
       case kEightBytePayloadLengthField:
         payloadOffset += 8;
         payloadLength = 0;
-        for (let i = 0; i < 8; ++i) {
+        for (var i = 0; i < 8; ++i) {
           payloadLength <<= 8;
           payloadLength |= data[2 + i];
         }