From 09df112d321c10614efeb4456633f9ce3a4ebfaa Mon Sep 17 00:00:00 2001
From: Tim van der Meij <timvandermeij@gmail.com>
Date: Sat, 9 Jun 2018 20:51:15 +0200
Subject: [PATCH] Remove `Util.appendToArray` and `Util.prependToArray`

The former may be replaced by regular JavaScript array concatenation and
the latter is unused. This avoids unnecessary function calls/imports.
---
 src/core/stream.js | 4 ++--
 src/display/api.js | 2 +-
 src/shared/util.js | 8 --------
 3 files changed, 3 insertions(+), 11 deletions(-)

diff --git a/src/core/stream.js b/src/core/stream.js
index 4bc5eb57ecee00..6840306397f086 100644
--- a/src/core/stream.js
+++ b/src/core/stream.js
@@ -13,7 +13,7 @@
  * limitations under the License.
  */
 
-import { FormatError, isSpace, stringToBytes, Util } from '../shared/util';
+import { FormatError, isSpace, stringToBytes } from '../shared/util';
 import { isDict } from './primitives';
 
 var Stream = (function StreamClosure() {
@@ -274,7 +274,7 @@ var StreamsSequenceStream = (function StreamsSequenceStreamClosure() {
     for (var i = 0, ii = this.streams.length; i < ii; i++) {
       var stream = this.streams[i];
       if (stream.getBaseStreams) {
-        Util.appendToArray(baseStreams, stream.getBaseStreams());
+        baseStreams = baseStreams.concat(stream.getBaseStreams());
       }
     }
     return baseStreams;
diff --git a/src/display/api.js b/src/display/api.js
index c9c8d41641342b..80241b6e809a60 100644
--- a/src/display/api.js
+++ b/src/display/api.js
@@ -1075,7 +1075,7 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
               return;
             }
             Util.extendObj(textContent.styles, value.styles);
-            Util.appendToArray(textContent.items, value.items);
+            textContent.items = textContent.items.concat(value.items);
             pump();
           }, reject);
         }
diff --git a/src/shared/util.js b/src/shared/util.js
index a52df0c427930f..cd650d902105ef 100644
--- a/src/shared/util.js
+++ b/src/shared/util.js
@@ -886,14 +886,6 @@ var Util = (function UtilClosure() {
     return (lowerCase ? romanStr.toLowerCase() : romanStr);
   };
 
-  Util.appendToArray = function Util_appendToArray(arr1, arr2) {
-    Array.prototype.push.apply(arr1, arr2);
-  };
-
-  Util.prependToArray = function Util_prependToArray(arr1, arr2) {
-    Array.prototype.unshift.apply(arr1, arr2);
-  };
-
   Util.extendObj = function extendObj(obj1, obj2) {
     for (var key in obj2) {
       obj1[key] = obj2[key];