1 files changed, 8 insertions, 8 deletions

diff --git a/lib/_http_outgoing.js b/lib/_http_outgoing.js
index 397b430c2f..fd4681f39f 100644
--- a/lib/_http_outgoing.js
+++ b/lib/_http_outgoing.js
@@ -115,7 +115,7 @@ OutgoingMessage.prototype._send = function(data, encoding) {
   // the same packet. Future versions of Node are going to take care of
   // this at a lower level and in a more general way.
   if (!this._headerSent) {
-    if (typeof data === 'string') {
+    if (IS_STRING(data)) {
       data = this._header + data;
     } else {
       this.output.unshift(this._header);
@@ -166,7 +166,7 @@ OutgoingMessage.prototype._buffer = function(data, encoding) {
 
   var length = this.output.length;
 
-  if (length === 0 || typeof data != 'string') {
+  if (length === 0 || !IS_STRING(data)) {
     this.output.push(data);
     this.outputEncodings.push(encoding);
     return false;
@@ -205,7 +205,7 @@ OutgoingMessage.prototype._storeHeader = function(firstLine, headers) {
 
   if (headers) {
     var keys = Object.keys(headers);
-    var isArray = (Array.isArray(headers));
+    var isArray = IS_ARRAY(headers);
     var field, value;
 
     for (var i = 0, l = keys.length; i < l; i++) {
@@ -218,7 +218,7 @@ OutgoingMessage.prototype._storeHeader = function(firstLine, headers) {
         value = headers[key];
       }
 
-      if (Array.isArray(value)) {
+      if (IS_ARRAY(value)) {
         for (var j = 0; j < value.length; j++) {
           storeHeader(this, state, field, value[j]);
         }
@@ -401,7 +401,7 @@ OutgoingMessage.prototype.write = function(chunk, encoding) {
     return true;
   }
 
-  if (typeof chunk !== 'string' && !Buffer.isBuffer(chunk)) {
+  if (!IS_STRING(chunk) && !IS_BUFFER(chunk)) {
     throw new TypeError('first argument must be a string or Buffer');
   }
 
@@ -412,7 +412,7 @@ OutgoingMessage.prototype.write = function(chunk, encoding) {
 
   var len, ret;
   if (this.chunkedEncoding) {
-    if (typeof(chunk) === 'string' &&
+    if (IS_STRING(chunk) &&
         encoding !== 'hex' &&
         encoding !== 'base64' &&
         encoding !== 'binary') {
@@ -444,7 +444,7 @@ OutgoingMessage.prototype.write = function(chunk, encoding) {
 OutgoingMessage.prototype.addTrailers = function(headers) {
   this._trailer = '';
   var keys = Object.keys(headers);
-  var isArray = (Array.isArray(headers));
+  var isArray = IS_ARRAY(headers);
   var field, value;
   for (var i = 0, l = keys.length; i < l; i++) {
     var key = keys[i];
@@ -466,7 +466,7 @@ var crlf_buf = new Buffer('\r\n');
 
 
 OutgoingMessage.prototype.end = function(data, encoding) {
-  if (data && typeof data !== 'string' && !Buffer.isBuffer(data)) {
+  if (data && !IS_STRING(data) && !IS_BUFFER(data)) {
     throw new TypeError('first argument must be a string or Buffer');
   }