CloseTag | الشروحات | Java Script | النطاق في لغة جافا سكريبت | JavaScript Scope

<!DOCTYPE html>
<html>
<body>

<h1>JavaScript Local Scope</h1>

<script>
function welcome(){
   'use strict';
   username= "Ahmed";
  //username is undeclared variable
  //undeclared variable can't access
  //username can't access here without declaration

}
welcome();
//username can,t access here in 'use strict'
</script>

</body>
</html>