Refactor function to a separate file

[MAILPOET-2835]

assets/js/src/form_editor/store/map_form_data_after_loading.jsx

@@ -1,11 +1,4 @@
-function asNum(num) {
-  const numI = parseInt(num, 10);
-  if (Number.isNaN(numI)) {
-    return undefined;
-  }
-  return numI;
-}
-
+import asNum from './server_value_as_num';
 
 export default function mapFormDataAfterLoading(data) {
   return {

assets/js/src/form_editor/store/server_value_as_num.ts

@@ -0,0 +1,10 @@
+
+function asNum(num?: string): number | undefined {
+  const numI = parseInt(num, 10);
+  if (Number.isNaN(numI)) {
+    return undefined;
+  }
+  return numI;
+}
+
+export default asNum;