Discussion on: A simple interview question

[Ahmedur Rahman Shovon]

We can use a check to see what values the input has at keyboard events. Then if it has empty string we can simply restore the original font-size of the mentioned classes.

Here is an approach to do so:

$(function() {
  $(".checker").on("keydown keyup", function(ev) {
    $(".js-cool, .js-beans").css("font-size", "24px");
    $input_val = $(this).val();
    if ($input_val == "") {
      $(".js-cool, .js-beans").css("font-size", "inherit");
    }
  });
});