Refactor use of Array constructor

Author: kgryte

lib/node_modules/@stdlib/ndarray/sub2ind/README.md

@@ -131,10 +131,10 @@ var sub2ind = require( '@stdlib/ndarray/sub2ind' );
 var shape = [ 3, 3, 3 ];
 var len = numel( shape );
 
-var arr = new Array( len );
+var arr = [];
 var i;
 for ( i = 0; i < len; i++ ) {
-    arr[ i ] = i;
+    arr.push( i );
 }
 
 var opts = {

lib/node_modules/@stdlib/ndarray/sub2ind/examples/index.js

@@ -24,10 +24,10 @@ var sub2ind = require( './../lib' );
 var shape = [ 3, 3, 3 ];
 var len = numel( shape );
 
-var arr = new Array( len );
+var arr = [];
 var i;
 for ( i = 0; i < len; i++ ) {
-	arr[ i ] = i;
+	arr.push( i );
 }
 
 var opts = {