add utilities

resources/assets/js/helpers/utilities.js

@@ -87,5 +87,16 @@ export default {
     } catch (e) {
       console.log(e)
     }
+  },
+
+  checkValidUrl (url) {
+    let pattern = new RegExp('^(https?:\\/\\/)?' + // protocol
+      '((([a-z\\d]([a-z\\d-]*[a-z\\d])*)\\.)+[a-z]{2,}|' + // domain name
+      '((\\d{1,3}\\.){3}\\d{1,3}))' + // OR ip (v4) address
+      '(\\:\\d+)?(\\/[-a-z\\d%_.~+]*)*' + // port and path
+      '(\\?[;&a-z\\d%_.~+=-]*)?' + // query string
+      '(\\#[-a-z\\d_]*)?$', 'i') // fragment locator
+
+    return !!pattern.test(url)
   }
 }