v18.4.31 is released

Author: pipeline

controls/base/CHANGELOG.md

@@ -2,6 +2,14 @@
 
 ## [Unreleased]
 
+## 18.4.31 (2020-12-22)
+
+### Common
+
+#### Bug Fixes
+
+- Resolved unwanted window variable addition while iterating `for` template.
+
 ## 18.3.52 (2020-12-01)
 
 ### Common

controls/base/dist/ej2-base.umd.min.js

@@ -4380,7 +4380,7 @@ function evalExp(str, nameSpace, helper) {
                     varCOunt = varCOunt + 1;
                     // tslint:disable-next-line
                     return 'var i' + varCOunt + '=0; i' + varCOunt + ' < ' + addNameSpace(rlStr_1[1], true, nameSpace, localKeys) + '.length; i' + varCOunt + '++';
-                }) + '{ \n ' + rlStr_1[0] + '= ' + addNameSpace(rlStr_1[1], true, nameSpace, localKeys)
+                }) + '{ \n ' + 'var ' + rlStr_1[0] + '= ' + addNameSpace(rlStr_1[1], true, nameSpace, localKeys)
                     + '[i' + varCOunt + ']; \n var ' + rlStr_1[0] + 'Index=i' + varCOunt + '; \n str = str + "';
             }
             else {