diff --git a/pkg/components/dashdiffs/formatter_json.go b/pkg/components/dashdiffs/formatter_json.go
index 488a345d492..09dac1ae5ac 100644
--- a/pkg/components/dashdiffs/formatter_json.go
+++ b/pkg/components/dashdiffs/formatter_json.go
@@ -206,10 +206,9 @@ func (f *JSONFormatter) processObject(object map[string]interface{}, deltas []di
 
 	// Added
 	for _, delta := range deltas {
-		switch delta.(type) {
+		switch delta := delta.(type) {
 		case *diff.Added:
-			d := delta.(*diff.Added)
-			f.printRecursive(d.Position.String(), d.Value, ChangeAdded)
+			f.printRecursive(delta.Position.String(), delta.Value, ChangeAdded)
 		}
 	}
 
@@ -222,9 +221,8 @@ func (f *JSONFormatter) processItem(value interface{}, deltas []diff.Delta, posi
 	if len(matchedDeltas) > 0 {
 		for _, matchedDelta := range matchedDeltas {
 
-			switch matchedDelta.(type) {
+			switch matchedDelta := matchedDelta.(type) {
 			case *diff.Object:
-				d := matchedDelta.(*diff.Object)
 				switch value.(type) {
 				case map[string]interface{}:
 					//ok
@@ -238,7 +236,7 @@ func (f *JSONFormatter) processItem(value interface{}, deltas []diff.Delta, posi
 				f.print("{")
 				f.closeLine()
 				f.push(positionStr, len(o), false)
-				f.processObject(o, d.Deltas)
+				f.processObject(o, matchedDelta.Deltas)
 				f.pop()
 				f.newLine(ChangeNil)
 				f.print("}")
@@ -246,7 +244,6 @@ func (f *JSONFormatter) processItem(value interface{}, deltas []diff.Delta, posi
 				f.closeLine()
 
 			case *diff.Array:
-				d := matchedDelta.(*diff.Array)
 				switch value.(type) {
 				case []interface{}:
 					//ok
@@ -260,7 +257,7 @@ func (f *JSONFormatter) processItem(value interface{}, deltas []diff.Delta, posi
 				f.print("[")
 				f.closeLine()
 				f.push(positionStr, len(a), true)
-				f.processArray(a, d.Deltas)
+				f.processArray(a, matchedDelta.Deltas)
 				f.pop()
 				f.newLine(ChangeNil)
 				f.print("]")
@@ -268,27 +265,23 @@ func (f *JSONFormatter) processItem(value interface{}, deltas []diff.Delta, posi
 				f.closeLine()
 
 			case *diff.Added:
-				d := matchedDelta.(*diff.Added)
-				f.printRecursive(positionStr, d.Value, ChangeAdded)
+				f.printRecursive(positionStr, matchedDelta.Value, ChangeAdded)
 				f.size[len(f.size)-1]++
 
 			case *diff.Modified:
-				d := matchedDelta.(*diff.Modified)
 				savedSize := f.size[len(f.size)-1]
-				f.printRecursive(positionStr, d.OldValue, ChangeOld)
+				f.printRecursive(positionStr, matchedDelta.OldValue, ChangeOld)
 				f.size[len(f.size)-1] = savedSize
-				f.printRecursive(positionStr, d.NewValue, ChangeNew)
+				f.printRecursive(positionStr, matchedDelta.NewValue, ChangeNew)
 
 			case *diff.TextDiff:
 				savedSize := f.size[len(f.size)-1]
-				d := matchedDelta.(*diff.TextDiff)
-				f.printRecursive(positionStr, d.OldValue, ChangeOld)
+				f.printRecursive(positionStr, matchedDelta.OldValue, ChangeOld)
 				f.size[len(f.size)-1] = savedSize
-				f.printRecursive(positionStr, d.NewValue, ChangeNew)
+				f.printRecursive(positionStr, matchedDelta.NewValue, ChangeNew)
 
 			case *diff.Deleted:
-				d := matchedDelta.(*diff.Deleted)
-				f.printRecursive(positionStr, d.Value, ChangeDeleted)
+				f.printRecursive(positionStr, matchedDelta.Value, ChangeDeleted)
 
 			default:
 				return errors.New("Unknown Delta type detected")
@@ -305,13 +298,13 @@ func (f *JSONFormatter) processItem(value interface{}, deltas []diff.Delta, posi
 func (f *JSONFormatter) searchDeltas(deltas []diff.Delta, position diff.Position) (results []diff.Delta) {
 	results = make([]diff.Delta, 0)
 	for _, delta := range deltas {
-		switch delta.(type) {
+		switch typedDelta := delta.(type) {
 		case diff.PostDelta:
-			if delta.(diff.PostDelta).PostPosition() == position {
+			if typedDelta.PostPosition() == position {
 				results = append(results, delta)
 			}
 		case diff.PreDelta:
-			if delta.(diff.PreDelta).PrePosition() == position {
+			if typedDelta.PrePosition() == position {
 				results = append(results, delta)
 			}
 		default:
@@ -417,20 +410,19 @@ func (f *JSONFormatter) print(a string) {
 }
 
 func (f *JSONFormatter) printRecursive(name string, value interface{}, change ChangeType) {
-	switch value.(type) {
+	switch value := value.(type) {
 	case map[string]interface{}:
 		f.newLine(change)
 		f.printKey(name)
 		f.print("{")
 		f.closeLine()
 
-		m := value.(map[string]interface{})
-		size := len(m)
+		size := len(value)
 		f.push(name, size, false)
 
-		keys := sortKeys(m)
+		keys := sortKeys(value)
 		for _, key := range keys {
-			f.printRecursive(key, m[key], change)
+			f.printRecursive(key, value[key], change)
 		}
 		f.pop()
 
@@ -445,10 +437,9 @@ func (f *JSONFormatter) printRecursive(name string, value interface{}, change Ch
 		f.print("[")
 		f.closeLine()
 
-		s := value.([]interface{})
-		size := len(s)
+		size := len(value)
 		f.push("", size, true)
-		for _, item := range s {
+		for _, item := range value {
 			f.printRecursive("", item, change)
 		}
 		f.pop()
diff --git a/pkg/services/sqlstore/login_attempt.go b/pkg/services/sqlstore/login_attempt.go
index 78da198e8e7..ceff2394dce 100644
--- a/pkg/services/sqlstore/login_attempt.go
+++ b/pkg/services/sqlstore/login_attempt.go
@@ -78,14 +78,14 @@ func GetUserLoginAttemptCount(query *m.GetUserLoginAttemptCountQuery) error {
 }
 
 func toInt64(i interface{}) int64 {
-	switch i.(type) {
+	switch i := i.(type) {
 	case []byte:
-		n, _ := strconv.ParseInt(string(i.([]byte)), 10, 64)
+		n, _ := strconv.ParseInt(string(i), 10, 64)
 		return n
 	case int:
-		return int64(i.(int))
+		return int64(i)
 	case int64:
-		return i.(int64)
+		return i
 	}
 	return 0
 }
diff --git a/public/app/core/components/CustomScrollbar/__snapshots__/CustomScrollbar.test.tsx.snap b/public/app/core/components/CustomScrollbar/__snapshots__/CustomScrollbar.test.tsx.snap
index 310eb714af9..0a7de5fcffe 100644
--- a/public/app/core/components/CustomScrollbar/__snapshots__/CustomScrollbar.test.tsx.snap
+++ b/public/app/core/components/CustomScrollbar/__snapshots__/CustomScrollbar.test.tsx.snap
@@ -6,8 +6,8 @@ exports[`CustomScrollbar renders correctly 1`] = `
   style={
     Object {
       "height": "auto",
-      "maxHeight": "inherit",
-      "minHeight": "inherit",
+      "maxHeight": "100%",
+      "minHeight": "0",
       "overflow": "hidden",
       "position": "relative",
       "width": "100%",
@@ -23,8 +23,8 @@ exports[`CustomScrollbar renders correctly 1`] = `
         "left": undefined,
         "marginBottom": 0,
         "marginRight": 0,
-        "maxHeight": "calc(inherit + 0px)",
-        "minHeight": "calc(inherit + 0px)",
+        "maxHeight": "calc(100% + 0px)",
+        "minHeight": "calc(0 + 0px)",
         "overflow": "scroll",
         "position": "relative",
         "right": undefined,