When would raw CSS and JavaScript be preferable over bootstrap? 

What are examples of responsive websites that aren't made with Bootstrap?

when would you use a modal? I feel like we don't really see popups in websites anymore 

"could you go over how 
                   $('[name=name]').val(),
                    $('[name=size]').val(),
                    $('[name=crop]').val());

works in the Bootstrap 4 Modal section? I'm a bit confused about what the elements are in here and why we are using the val() method"




"
function flashText() {
  const oElem = document.getElementById(""my_box"");
  oElem.className = oElem.className === ""go"" ? ""stop"" : ""go"";
}

I was a bit confused by this function used by MDN in explaining setInterval(), especially the last line. It is a function used in the callback function of setInterval(), but it might be too specific to get into in class."

I thought this reading was pretty straightforward and clear!  / I am all set! :)