Refactor code and handle edge cases

1 files changed, 10 insertions, 6 deletions

diff --git a/app/lib/formatters.js b/app/lib/formatters.js
index b850b20393..966d9976bf 100644
--- a/app/lib/formatters.js
+++ b/app/lib/formatters.js
@@ -1,9 +1,13 @@
+import assert from 'assert';
+
 export const formatAccount = (val) => {
-    // display number altogether when longer than 12
-    if(val.length > 12) {
-      return val;
-    }
+  assert(typeof(val) === 'string');
+  
+  // display number altogether when longer than 12
+  if(val.length > 12) {
+    return val;
+  }
 
-    // display quartets
-    return val.replace(/([0-9]{4})/g, '$1 ').trim();
+  // display quartets
+  return val.replace(/([0-9]{4})/g, '$1 ').trim();
 };