diff --git a/grails-app/assets/javascripts/forms.js b/grails-app/assets/javascripts/forms.js
index de9a20c..da771c3 100644
--- a/grails-app/assets/javascripts/forms.js
+++ b/grails-app/assets/javascripts/forms.js
@@ -296,7 +296,27 @@ function orEmptyArray(v) {
             return _.findWhere(list, obj);
         };
 
-        parser.functions.deepEquals = function(value1, value2) {
+        parser.functions.deepEquals = function(value1, value2, isSortArray) {
+            // set isSortArray to true if content of array is important and not the order i.e. [1,2,3] == [3,2,1]
+            isSortArray = isSortArray || false;
+            // Sort arrays in nested objects to ensure that lodash compares arrays correctly
+            function sortArraysInObject(obj) {
+                if (_.isArray(obj)) {
+                    obj.sort();
+                } else if (typeof obj === 'object' && obj !== null) {
+                    for (var key in obj) {
+                        sortArraysInObject(obj[key]); // Recursively call to sort arrays in nested objects
+                    }
+                }
+
+                return obj;
+            }
+
+            if (isSortArray) {
+                sortArraysInObject(value1);
+                sortArraysInObject(value2);
+            }
+
             return _.isEqual(value1, value2);
         };
 
diff --git a/src/test/js/spec/ExpressionSpec.js b/src/test/js/spec/ExpressionSpec.js
index 472e8eb..ab96973 100644
--- a/src/test/js/spec/ExpressionSpec.js
+++ b/src/test/js/spec/ExpressionSpec.js
@@ -124,4 +124,43 @@ describe("Expression Spec", function () {
 
     });
 
+    it("Should be able to compare two arrays", function() {
+        var data  = {
+            a: [1, 2, 3],
+            b: [3, 2, 1]
+        };
+        // unsorted arrays
+        var result = ecodata.forms.expressionEvaluator.evaluateBoolean("deepEquals(a, b)", data);
+        expect(result).toEqual(false);
+
+        data  = {
+            a: {c: [1, 2, 3]},
+            b: {c: [3, 2, 1]}
+        };
+        var result = ecodata.forms.expressionEvaluator.evaluateBoolean("deepEquals(a, b)", data);
+        expect(result).toEqual(false);
+
+        // enable array sorting
+        var data  = {
+            a: [1, 2, 3],
+            b: [3, 2, 1]
+        };
+        var result = ecodata.forms.expressionEvaluator.evaluateBoolean("deepEquals(a, b, true)", data);
+        expect(result).toEqual(true);
+
+        data  = {
+            a: {c: [1, 2, 3]},
+            b: {c: [3, 2, 1]}
+        };
+        var result = ecodata.forms.expressionEvaluator.evaluateBoolean("deepEquals(a, b, true)", data);
+        expect(result).toEqual(true);
+
+        data  = {
+            a: {c: [1, 2]},
+            b: {c: [3, 2, 1]}
+        };
+        var result = ecodata.forms.expressionEvaluator.evaluateBoolean("deepEquals(a, b)", data);
+        expect(result).toEqual(false);
+    })
+
 });
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