Added (BMI calculator) ng-app module

ng-app/viv_ng_bmi.js

@@ -0,0 +1,67 @@
+
+app.controller('myCtrl2', function($scope) {
+
+    $scope.b_value="BMI";
+
+    $scope.solveBMI = function() {
+
+        var n_height = $scope.ng_height/3.28;
+        n_height = n_height*n_height;
+        $scope.b_value = $scope.ng_weight/n_height;
+    }
+
+    $scope.clear = function() {
+        $scope.b_value = "BMI";
+    }
+
+
+    //pre prototype for customStyle
+    $scope.customStyle = {};
+    $scope.customStyle2 = {};
+
+    $scope.comment = "---";
+    $scope.comment_sub = "●";
+    $scope.customStyle = "blue";
+    $scope.customStyle_sub = "blue";
+
+    $scope.$watch('b_value', function () {
+
+        if ($scope.b_value > 25 && $scope.b_value < 26) {
+            $scope.comment = "Overweight";
+            $scope.customStyle = "Lowred";
+            $scope.comment_sub = "😅";
+            $scope.customStyle_sub = "Lowred";
+        } 
+
+        if ($scope.b_value > 26) {
+            $scope.comment = "Overweight";
+            $scope.customStyle = "Lowred";
+            $scope.comment_sub = "😏";
+            $scope.customStyle_sub = "Lowred";
+        } 
+
+        else if ($scope.b_value < 24.9 && $scope.b_value>18.5) {
+            $scope.comment = "Healthy";
+            $scope.customStyle = "green";
+            $scope.comment_sub = "😃";
+            $scope.customStyle_sub = "green";
+        }
+
+        else if ($scope.b_value == 18.5) {
+            $scope.comment = "Perfect";
+            $scope.customStyle = "blue";
+            $scope.comment_sub = "🤩";
+            $scope.customStyle_sub = "blue";
+        }
+
+        else if ($scope.b_value < 18.5) {
+            $scope.comment = "Underweight";
+            $scope.customStyle = "red";
+            $scope.comment_sub = "🤨";
+            $scope.customStyle_sub = "red";
+        }
+    });
+
+
+
+});